STOCK TITAN

US Antimony details 6,250 oz indicated gold estimate

The Nolan Creek resource estimates are not reserve estimates; the qualified person made no economic analysis or mining-method recommendation.

(Moderate)

Sentiment and the balance of points

Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.

Form Type
8-K

Rhea-AI Filing Summary

United States Antimony Corporation (UAMY) made available a technical report summary for the Nolan Creek property in Alaska, held through its wholly owned subsidiary Great Land Minerals LLC. It lists 66,800 cubic yards of indicated placer-gold resources at 0.095 ounces per cubic yard, containing 6,250 ounces of gold; that estimate is effective July 29, 2008, and was amended September 15, 2026. It also lists 32,459 short tons of total inferred lode resources across Workman’s Bench and Pringle Bench, with grades of 14.29% antimony and 0.362 ounces of gold per short ton, and 11,752.5 ounces of gold.

Great Land Minerals acquired 13 lode and 23 placer federal claims at a public auction on January 30, 2026, for $1.3 million. UAMY staked 48 additional Alaska state claims in fall 2026. The qualified person made no mineral reserve estimate or economic analysis and recommended no mining methods; the report says the former mine-camp facilities are in disrepair and cannot be used.

Filing Explained

The report also lists a combined measured-and-indicated lode resource estimate for Workman’s Bench: 53,616 short tons, grading 26.27% antimony and 0.372 ounces of gold per ton.

Item 7.01 Regulation FD Disclosure Disclosure
Material non-public information disclosed under Regulation Fair Disclosure, often investor presentations or guidance.
Item 8.01 Other Events Other
Voluntary disclosure of events the company deems important to shareholders but not covered by other items.
Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, or exhibit attachments filed with this report.
Indicated placer resource quantity 66,800 cubic yards Nolan Creek; estimate effective July 29, 2008, amended September 15, 2026
Indicated placer gold 6,250 ounces of gold Nolan Creek indicated placer resource estimate
Total inferred lode resource quantity 32,459 short tons Workman’s Bench and Pringle Bench
Total inferred lode antimony grade 14.29% Workman’s Bench and Pringle Bench
Total inferred lode gold grade 0.362 ounces per short ton Workman’s Bench and Pringle Bench
Total inferred lode gold 11,752.5 ounces of gold Workman’s Bench and Pringle Bench
Claim acquisition price $1.3 million Great Land Minerals LLC acquisition at public auction on January 30, 2026
Indicated placer gold mineral resources technical
"Indicated placer gold mineral resources, Nolan Creek"
Inferred lode mineral resources technical
"Total Inferred lode mineral resources, Workman’s Bench and Pringle Bench"
cut-off grade technical
"Cut-off grade is 4.0% Sb ‘equivalent’"
The cut-off grade is the minimum concentration of a mineral in rock that makes extraction and processing economically worthwhile; material below that level is treated as waste. It sets the boundary between ore and waste and directly affects reported reserves, projected mine life, and expected profits. Think of it like deciding which fruit on a tree is worth picking after accounting for the time and cost to harvest — raising or lowering that threshold can change how much “good” product a project appears to have.
Qualified Person technical
"an independent Qualified Person (QP)"
A qualified person is someone with specialized knowledge, experience, and training in a particular field, allowing them to accurately assess and verify information or work. Their expertise helps ensure that reports, evaluations, or decisions are trustworthy and meet required standards. For investors, a qualified person provides confidence that the information they rely on is credible and properly validated.
Mineral Reserves technical
"No Mineral Reserves are included in this report"
Mineral reserves are the amounts of a metal or mineral that a company has identified and can legally and economically extract with current technology. Think of it like the usable fuel in a car’s tank rather than all the oil in the ground; reserves determine how long a mine can produce, help estimate future revenue and costs, and shape a company’s value and investment risk.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How much indicated placer gold does UAMY report at Nolan Creek?

The indicated placer estimate contains 6,250 ounces of gold in 66,800 cubic yards of material, at a grade of 0.095 ounces per cubic yard. The estimate is effective July 29, 2008, and was amended September 15, 2026.

How much did UAMY pay for the Nolan Creek property?

Great Land Minerals LLC, UAMY’s wholly owned subsidiary, acquired the property at a public auction on January 30, 2026, for $1.3 million.

Does the Nolan Creek estimate include mineral reserves?

No. The qualified person states that no mineral reserve estimates were made for the properties described in the technical report summary.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 8-K

 

CURRENT REPORT

 

Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934

 

Date of report (Date of earliest event reported) October 26, 2026

 

  UNITED STATES ANTIMONY CORPORATION  
  (Exact name of registrant as specified in its charter)  

 

Texas   001-08675   81-0305822

(State or other jurisdiction

of incorporation)

 

(Commission

File No.)

 

(IRS Employer

Identification Number)

 

4438 W. Lovers Lane, Unit 100, Dallas, TX   75209
(Address of principal executive offices)   (Zip Code)

 

Registrant’s telephone number, including area code: (406) 606-4117

 

Not Applicable

(Former name or former address, if changed since last report.)

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
   
¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
   
¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
   
¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class   Trading Symbol(s)   Name of each exchange on which
registered
Common Stock, $0.01 par value   UAMY   NYSE
Common Stock, $0.01 par value   UAMY   NYSE Texas

 

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

 

Emerging growth company ¨

 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

 

 

 

 

 

Item 7.01 Regulation FD Disclosure.

 

On October 26, 2026, the Company issued a press release announcing the completion of a new technical report summary on its Nolan Creek Property located in the State of Alaska. A copy of the press release is furnished as Exhibit 99.2 to this Current Report on Form 8-K. The information in this Item 7.01, including Exhibit 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

 

Item 8.01 Other Events.

 

On October 26, 2026, United States Antimony Corporation (the “Company”) provided an operational update on it’s Nolan Creek Project, a mining claim prospective for both antimony and gold, located in northern Alaska, approximately 175 miles north of Fairbanks, Alaska, by making available a Technical Report Summary (“TRS”) titled “Initial Assessment and Estimation of Placer Gold Lode Antimony-Gold Resources, Nolan Creek Area Wiseman District Alaska” for the property, with an original effective date of July 29, 2008 and subsequently amended as of September 15, 2026. The TRS has recently been prepared and completed in accordance with the requirements of subpart 1300 of Regulation S-K.  Both TRS documents were completed by Mr. Thomas K. Bundtzen, President of Pacific Rim Geological Consulting, Inc., who is a “Qualified Person” as such term is defined in subpart 1300 of Regulation S-K. The Nolan Creek Property was acquired by the Company at a public auction on January 30, 2026.

 

The Nolan Creek Project is directly owned by Great Land Minerals (“GLM”), a wholly-owned subsidiary of the Company.

 

For a complete description of the Nolan Creek Project, see the TRS, which is filed as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

 

Cautionary Note Regarding Forward-Looking Statements

 

This Current Report on Form 8-K contains forward-looking statements. Forward-looking statements reflect management’s current knowledge, assumptions, judgment, and expectations regarding future performance or events. Although management believes that the expectations reflected in such statements are reasonable, they give no assurance that such expectations will prove to be correct, and you should be aware that actual events or results may differ materially from those contained in the forward- looking statements. Words such as "will," "expect," "intend," "plan," "potential," "possible," "goals," "accelerate," "continue," and similar expressions identify forward-looking statements.

 

Forward-looking statements are subject to a number of risks and uncertainties including, but not limited to, those described in the Company’s filings on Form 10-K, Form 10-Q, and Form 8-K with the United States Securities and Exchange Commission.

 

All forward-looking statements are expressly qualified in their entirety by this cautionary notice. You should not rely upon any forward-looking statements as predictions of future events. The Company undertakes no obligation to revise or update any forward-looking statements made in this Current Report on Form 8-K to reflect events or circumstances after the date hereof, to reflect new information or the occurrence of unanticipated events, to update the reasons why actual results could differ materially from those anticipated in the forward-looking statements, in each case, except as required by law.

 

 

 

 

Item 9.01 Financial Statements and Exhibits.

 

(d) Exhibits.

 

Exhibit
No.
  Description
23.1   Consent of Thomas K. Bundtzen, Pacific Rim Geological Consulting, Inc.
99.1   Technical Report Summary on the Nolan Creek Property, Alaska
99.2   Press Release of United States Antimony Corporation, dated October 21, 2026
104   Cover Page Interactive Data File (embedded with the inline XBRL document)

 

 

 

 

SIGNATURES

 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

    UNITED STATES ANTIMONY CORPORATION
     
Dated: October 26, 2026   By: /s/ Shawn Winkler
    Shawn Winkler
    SVP and Chief Financial Officer

 

 

 

 

Exhibit 99.1

 

REPORT

 

SEC S-K 1300 Technical Report Summary

 

Initial Assessment and Estimation of Placer Gold and Lode Antimony-Gold Resources, Nolan Creek Area, Wiseman Mining District Alaska

 

Submitted to:

 

U.S. Antimony Corporation (USAC)

 

4438 West Lovers Lane, Suite 100, Dallas Texas 75209 USA

 

Submitted by:

 

Pacific Rim Geological Consulting, Inc.,

 

P.O. Box 81906, Fairbanks, Alaska USA 99708 1 907 388 6607

 

E-Mail: Bundtzen@pacrimgeol.com

 

 

 

October 2nd, 2026

 

 

 

 

TABLE OF CONTENTS

 

Date and Signature Page 9
1.0 EXECUTIVE SUMMARY 11
  1.1 Property Description and Ownership 11
  1.2 Geology and Mineralization 11
  1.3 Status of Exploration 12
  1.4 Development and Operations 12
  1.5 Mineral Resource Estimate 13
  1.6 Mineral Reserve Estimate 14
  1.7 Mining Methods 14
  1.8 Processing and Recovery Methods 14
  1.9 Capital and Operating Costs 14
  1.10 Economic Analysis 14
  1.11 Infrastructure 14
  1.12 Permitting Requirements 15
  1.10 Qualified Person’s Conclusions and Recommendations 15
2.0 INTRODUCTION 18
  2.1 Registrant Information 18
  2.2 Terms of Reference and Purpose 18
  2.3 Sources of Information 18
  2.4 Personal Inspection Summary 19
  2.5 Previously Filed Technical Report Summary Reports 20
  2.6 Units of Measure 20
3.0 PROPERTY DESCRIPTION 21
  3.1 Nolan Creek area claims 21
4.0 ACCESSIBILITY, CLIMATE, LOCAL INFRASTRUCTURE, AND PHYSIOGRAPHY 24
  4.1 Topography and Land Description 24
  4.2 Access to the Property 24
  4.3 Climate Description 24
  4.4 Vegetation and Land Use 26

 

 2 

 

 

  4.5 Availability of Required Infrastructure 27
5.0 HISTORY 29
  5.1 Mining History of the Area 29
  5.2 Drilling Exploration Summary 29
  5.3 Historical Production 31
6.0 GEOLOGICAL SETTING, MINERALIZATION AND DEPOSIT 33
  6.1 Regional Geology 33
  6.2 Local and Property Geology 34
  6.3 Alteration and Mineralization 36
  6.4 Deposit Types 36
7.0 EXPLORATION 39
  7.1 Exploration of Heavy Mineral Placer deposits 39
  7.2 Nolan Antimony-Gold Lode Deposits 39
8.0 SAMPLE PREPARATION, ANALYSIS, AND SECURITY 60
  8.1 Site Sampling, Preparation Methods and Security 60
  8.2 Laboratory Sample Preparation Methods and Analytical Procedures 65
  8.3 Quality Control and Quality Assurance Programs 66
  8.4 Qualified Person’s Opinion Regarding Sample Preparation, Security and Analytical Procedures 67
9.0 DATA VERIFICATION 68
  9.1 Exploration and Mineral Resource Data Verification 68
  9.2 Exploration Data Limitations 70
10.0 MINERAL PROCESSING AND METALLURGICAL TESTING 71
  10.1 Placer Deposits 71
  10.2 Lode Deposits 74
  10.3 Trace Element Content of Nolan Mineralization 78
  10.4 Recovery Estimates 81
  10.5 Qualified Person’s Opinion 81
11.0 MINERAL RESOURCE ESTIMATES 82
  11.1 Disclosure 82
  11.2 Key Assumptions, Parameters, and Methods 82

 

 3 

 

 

  11.3 Mineral Resource Estimate 84
  11.4 Measured Lode Antimony-Gold Resource at Nolan Creek 94
  11.5 Indicated Lode Antimony-Gold Resource Estimate at Nolan Creek 101
  11.6 Inferred Lode Antimony-Gold Resource Estimate at Nolan Creek 105
  11.7 Mineral Resource Uncertainty Discussion 115
  11.8 Assumptions for Multi-Commodity Mineral Resource Estimate 119
  11.9 Qualified Person’s Opinion on Factors that Influence Economic Extraction 120
12.0 MINERAL RESERVE ESTIMATES 121
13.0 MINING METHODS 122
14.0 PROCESSING AND RECOVERY Methods 123
15.0 INFRASTRUCTURE 124
  15.1 Previous Production Infrastructure on property 124
  15.2 Present State of Infrastructure on Property 124
16.0 MARKET STUDIES   125
17.0 ENVIRONMENTAL STUDIES, PERMITTING, AND PLANS, NEGOTIATIONS OR AGREEMENTS WITH LOCAL INDIVIDUALS OR GROUPS 126
  17.1 Geotechnical-Environmental Studies 126
  17.2 Hydrological Studies 128
  17.3 Environmental Monitoring 130
  17.4 Water Management Plan 130
  17.5 Mine Closure 130
  17.6 Permitting 131
  17.7 Plans, Negotiations, or Agreements with Local Individuals or Groups 134
  17.8 Descriptions of any commitments to ensure local hiring 134
  17.9 Qualified Person’s Opinion 134
18.0 CAPITAL AND OPERATING COSTS 135
19.0 ECONOMIC ANALYSIS 136
20.0 ADJACENT PROPERTIES 137
21.0 OTHER RELEVANT DATA AND INFORMATION 138
22.0 INTERPRETATION AND CONCLUSIONS 139
  22.1 Mineral Resources 139

 

 4 

 

 

  22.2 Environmental, Permitting and Social 139
  22.3 Mineral Processing 139
  22.4 Mineral Reserves 140
23.0 RECOMMENDATIONS 141
  23.1 Mineral Resources 141
  23.2 Environmental, Permitting and Social 144
  23.3 Geotechnical 144
  23.4 Mineral Processing 144
  23.5 Tailings Storage Facility 145
  23.6 Mineral Reserves 145
24.0 REFERENCES 146
25.0 RELIANCE ON INFORMATION PROVIDED BY REGISTRANT 153
26.0 APPENDIX I 154
27.0 APPENDIX II 168

 

Figures

 

Figure 3.1 Map of the thirty-six (36) federal claims purchased by USAC, January 2026 23
Figure 3.2 Forty-eight (48) Alaska State Claims covering the Nolan Creek area 2026 23
Figure 4.1 Nolan Creek location map, showing access features to claims held by USAC 25
Figure 4.2 Coldfoot Camp, 06 13 2026; USAC vehicle in foreground; photo by QP 26
Figure 4.3 Main Street of Wiseman Village on 06 13 2026. Photo by QP 27
Figure 4.4 Nolan Mine Camp as it appeared during spring, 2008; From QP files 28
Figure 5.1 Prospector #3 Multi-Purpose NQ Core Drill TM, October 22, 2007; QP files 30
Figure 5.2 Low profile truck used in underground placer mining, circa 2006; from QP 32
Figure 5.3 Washing plant washed pay gravels from 2005-2007, Swede Channel project 32
Figure 6.1 Geologic map of the Nolan Creek area; from Dillon and Reifenstuhl (1990) 35
Figure 6.2 Photomicrographs, Workman’s Bench mineralized system 38
Figure 7.1 Location Map Showing Locations of 771 placer drill collars, Nolan Creek 40
Figure 7.2 Plan of Swede Channel Underground Development; 2005-2006 41
Figure 7.3 Plan of Mary’s East Underground Development and Exploration Drilling 42
Figure 7.4 Contour map from drill data and underground workings in Nolan Creek Valley 43

 

 5 

 

 

Figure 7.5 A—gold concentrate rich in stibnite; B—placer nuggets of gold plus stibnite 43
Figure 7.6 Map of Nolan Creek Basin with 870 Khz geophysical (resistivity) anomaly 44
Figure 7.7 Soil sample locations on Workman Bench-Pringle Bench area 45
Figure 7.8 1994 inaugural percussion (RC) drill hole results for Workman’s Bench 47
Figure 7.9 Selected Stibnite-bearing intervals in 2008 and 2009 diamond drill hole 48
Figure 7.10 Schematic of Workman’s Bench, showing locations of drill holes 54
Figure 7.11 Schematic, cross section A-A’, southern portion of Workman’s Bench 55
Figure 7.12 Schematic, cross section B-B’ in the central portion, Workman’s Bench 56
Figure 7.13 Schematic, cross section C-C’ in northern portion Workman’s Bench 57
Figure 7.14 Schematic plane view of Pringle Bench, showing locations of drill holes 58
Figure 7.15 Schematic, cross sectional profile D-D’ on Pringle Bench 59
Figure 8.1 Geologists collect channel sample underground, Workmen’s Bench 62
Figure 8.2 Location, underground channel samples, Workman’s Bench 63
Figure10.1 Side view of 2007 Nolan washing plant 72
Figure10.1 Plan view of 2006 Nolan wash plant 73
Figure 10.3 Tabled Concentrate from Workman’s Bench analyzed Hazen Research Labs 75
Figure 10.4 Hazen mineralogical separation process flowchart for Workman’s Bench 76
Figure 10.5 Gold (bright color) in stibnite (gray), Workman’s Bench Bulk sample 77
Figure 10.6 Stibnite-gold concentrates from table products from Nolan Bulk Sample 78
Figure 10.7 Drill plan showing the locations of mercury analyses, 2008 core drilling 80
Figure11.1 Location of placer-style gold mineral resource estimates, Nolan Creek 85
Figure11.2 Polygon layout for D-Block #1 and 3B3-Block indicated resources placer gold 88
Figure 11.3 Histogram plots of antimony (on left) and gold (on right) distribution 91
Figure 11.4 As-Au and Sb-Au correlations for assay results Workman’s Bench 91
Figure 11.5 Surface view of Workman’s bench mineralized zones with drill collars 95
Figure 11.6 Measured resource polygons for ‘A’ Zone, Workman’s Bench, Nolan Creek 96
Figure 11.7 Measured resource polygons for ‘B’ Zone, Workman’s Bench 98
Figure 11.8 Measured resource polygons for ‘West’ Zone, Workman’s Bench 100
Figure 11.9 Indicated Resource polygons for ‘A’ Zone, Workman’s Bench, 2009 drilling 103
Figure 11.10 Indicated resource polygons for B Zone, Workman’s Bench, 2009 drilling 104
Figure 11.11 Inferred Resource polygons for ‘A’ Zone, Workman’s Bench 106
Figure 11.12 Inferred Resource polygons for ‘B’ Zone, Workman’s Bench 107
Figure 11.13 Inferred Resource polygons for ‘C’ Zone, Workman’s Bench 108
Figure 11.14 Surface view of Pringle Bench mineralized zones trenches and drill locales 111
Figure 11.15 Inferred Resource polygons for ‘A’ Zone, Pringle Bench; 2009 drilling 112
Figure 11.16 Inferred Resource polygons for West Zone, Pringle Bench; 2009 drilling 113
Figure 11.17 Plan view image of Workman’s bench ‘A’ Zone vein-fault. Scale 100 feet 117
Figure 11.18 Side profile of Workman’s Bench ‘A’ Zone looking northwest; with Sb grade 118

 

 6 

 

 

Figure 15.1  A—Fuel tank storage facility in 2009; B—Same Fuel tank storage in 2026 124
Figure 17.1 Land reclamation conducted on previously mined Odgen-Eureka Bench 126
Figure 17.2 A—Underground drift looking E/Se in 2008 Note near-horizontal, phyllitic schist bands in base and roof; B—portal on April 12th , 2008. Photos from QP files 128
Figure 17.3 Core logging summary from 2007 core drilling, showing acidity 129
Figure 17.4 A--Inside machine shop as it appeared in 2006; note dirt floor in shop; B—inside machine shop as it appeared in 06 13 2026—both from QP files 131
Figure 23.1 Priority 1 work program for Workman’s Bench 141
Figure 23.2 Priority II program for Pringle Bench 142
Figure 23.3 Removal of overburden on Pringle Bench with hydraulic technology 142
Figure 23.4 Pringle Bench mineralized surface exposed by removal of overburden 143
Figure 23.5 USAC manger Rodney Blakestad inspects drill core storage facility 143

 

Tables

 

Table 2. 1 Units of measure used in this Technical Report 20
Table 3.1 Legal Description the Federal Mining Claims acquired by USAC, January, 2026 22
Table 5.1 Summary of lode drilling programs, Nolan Creek 30
Table 5.2 Placer gold production from Silverado properties, 1979 to 2007, Nolan Creek 31
Table 7.1 Summary of lode exploration activities, Nolan Creek, 1981-to-2009 46
Table 7.2 Collar location and data, Pringle Bench, 2006-2009 Exploration 49
Table 7.3 Collar location and data, Workman’s Bench; 2007-2009 Exploration 50
Table 8.1 Drill hole intersection summary for 3B3-Block 61
Table 8.2 Table of selected sample composites, Workman’s Bench drill program 64
Table 9.1 Duplicate analytical comparisons between QP and contractor samples 68
Table 9.2 List of Duplicate Samples, Workman’s Bench Drilling Program 2008 69
Table 10.1 Composition of the Heavy-Liquid Sink Product 77
Table 10.2 Stibnite quality comparative characteristics from Amalgamet-Canada 81
Table 11.1 Reconciliation of estimated gold content for two selected placer deposits 86
Tables 11.2 D Block #1 Below Discovery and 3B3 Block indicated resource estimates 87
Table 11.3   Placer deposit indicated mineral resources, USAC Nolan Creek claims 89
Table 11.4   Characteristics of indicated resources-measured resources versus inferred resources, Nolan Creek antimony-gold deposits, Alaska 89
Table 11.5 Analysis of high grade, gold intervals, Workman’s/Pringle Bench 92
Table 11.6 Specific gravity (SG) measurements (ASTM C 127) for Workman’s Bench 94
Table 11.7 Measured lode mineral resource, Workman’s Bench, Nolan Creek 94
Table 11.8 Polygonal measured resource block summary, ‘A’ Zone, Workman’s Bench 97
Table 11.9 Polygonal probable resource for ‘West’ Zone, Workman’s Bench 99

 

 7 

 

 

Table 11.10 Data for probable resource in ‘A’, ‘B’ and ‘West’ Zones, Workman’s Bench 101
Table 11.11 Indicated resource summary 2009 drill program, A-Zone, Workman’s Bench 102
Table 11.12 Indicated resource summary 2009 Drill Program, B-Zone, Workman’s Bench 102
Table 11.13 Measured and Indicated lode resources, Workman’s Bench 105
Table 11.14 Total inferred lode mineral resources, Workman’s Bench and Pringle Bench 105
Table 11.15 Polygonal Block Inferred Resource Estimate for ‘C Zone’, Workman’s Bench 109
Table 11.16 Polygonal Inferred Resource Estimate ‘A Zone’, Workman’s Bench 109
Table 11.17 Polygonal Inferred Resource Estimate ‘West Zone’, Workman’s Bench 109
Table 11.18 Polygonal Block inferred resource estimate for ‘B-Zone’, Workman’s Bench 109
Table 11.19 Summary of Inferred Antimony and Gold Resources From Workman’s Bench 110
Table 11.20 Polygonal inferred resource ‘A’ Zone, Pringle Bench Bundtzen (2009) 114
Table 11.21 Polygonal inferred resource Pringle bench, A-Zone, Bundtzen (2011) 114
Table 11.22 Polygonal inferred resource calculation for ‘West’ Zone, Pringle Bench 114
Table 11.23 Polygonal inferred resource from 2009 Drill Program, West-Zone, Pringle Bench 115
Table 11.24 Total Inferred Lode Mineral Resource calculation, Pringle Bench 115
Table 11.25 Proven Indicated Resources calculated by VulcanTM 118
Table 11.26 Comparative Results of Polygonal Method versus VulcanTM block model 119
Table 17.1 Results of Field Rinses of samples, Nolan Lode Project 133
Table 17.2 Underground sampling program for ML/ARD Program, Nolan Camp, 2008 133

 

Appendices

 

APPENDIX I: Summary of Relevant Sample Data Used in Calculation of all Categories of Sb and Au Resources from Workman’s Bench That are Described in this Technical Report; Including Relevant Trace Element Data 154
   
APPENDIX II Summary of Relevant Sample Data Used in Calculation of Inferred Sb and Au Resources from Pringle Bench that are described in this Technical Report 168

 

 8 

 

 

DATE AND SIGNATURE PAGE

 

The effective date of the Mineral Resources Estimates is October 6th, 2026

 

Author and  Sections  Signature
Qualified Person      
Thomas K. Bundtzen  All Sections  /s/ Thomas K. Bundtzen

 

The qualifications and relevant experiences of the QP is summarized below:

 

Thomas K. Bundtzen (the QP):

 

§ Education:

 

B.S. Geology, 1973 College of Earth Science and Mineral Industries (CESMI), University of Alaska-Fairbanks.

 

M.S. Economic Geology, 1981, Department of Geology and Geophysics, University of Alaska-Fairbanks.

 

§ Years of Experience

 

Twenty-five (25) years as senior economic geologist with the Alaska Division of Geological and Geophysical Surveys (1972-1997).

 

Twenty-eight (28) years as President and Principal Economic Geologist with Alaska-based firm Pacific Rim Geological Consulting, Inc. based in Fairbanks, Alaska USA (1998-2026.

 

§ Relevant Experience

 

During 1979-1981, the QP completed his M.S. Thesis in the Kantishna Mining district of Interior Alaska and studied four stibnite-gold deposits, including the Stampede mine, Alaska’s largest historic producer of antimony. Since 1980, the QP has studied and sampled semi-massive stibnite vein deposits in the Fairbanks, Tok, Iditarod, Cape Nome, Ruby and Innoko mining districts of Interior and Western Alaska.

 

 9 

 

 

While participating in an International Minerals Exchange between the U.S. Geological Survey, Soviet (later Russian) Ministry of Natural Resource, the Alaska Division of Geological and Geological Survey, and the Geological Survey of Canada (1989-1997), the QP examined stibnite deposits and mines throughout the Russian Far East.

 

From 2004-2011, the QP conducted field investigations in the Fairbanks and Wiseman districts and has written Technical Reports for the firm Silverado Gold Mines Ltd., the former owner of the claims in Nolan Creek valley now held by USAC. These include the Workman’s Bench and Pringle Bench antimony-gold lode deposits, which are the principal subjects being reviewed in this Technical Report. A Technical Report summarizing placer resources and initial lode resource estimates was prepared by the QP in 2008. Subsequently Canadian National Instrument NI 43-101 Technical Reports on the Nolan Creek and antimony-gold deposits were released in June, 2009, and subsequently amended in July, 2011.

 

 10 

 

 

1.0     EXECUTIVE SUMMARY

 

1.1        Property Description and Ownership

 

This Technical Report summarizes the geologic framework, and mineral resources as an initial assessment placer gold resources and the Workman’s Bench and Pringle Bench antimony-gold lode deposits owned by Great Land Minerals LLC (GLM) a wholly owned subsidiary of the United States Antimony Corporation (USAC) in the Nolan Creek area (Nolan Creek) of the historic Koyukuk Mining District. According to government reports, historic mineral production in the area is about 350,000 oz of placer-style gold and a small amount of stibnite (ore of antimony) since 1894. Nolan Creek is about 175 mi (280 km) north-northwest of Fairbanks, Alaska. This analysis focuses on the lode antimony-gold deposits owned by GLM/USAC.

 

Nolan Creek is part of the Koyukuk Mining District, which covers about 12,500 sq mi (32,000 km2) of northern Alaska. The district is bounded on the east by the South Fork of Koyukuk River, the Alatna River on the west, the continental divide of the Brooks Range on the north, and the Kanuti River Basin on the south. Nolan Creek is at the center of the Koyukuk Mining District. Elevations in the area range from 4,635 ft (1420 m) on Vermont Dome to about 1,220 ft (370 m) on the floodplain of the Middle Fork of the Koyukuk River.

 

GLM acquired thirteen (13) lode and twenty-three (23) placer federal mining claims in Nolan Creek valley through a Trustee’s sale in a public auction on January 30th, 2026. The properties had been previously owned by Silverado Gold Mines Ltd. (Silverado) a Canadian public company based in Vancouver, British Columbia, which conducted exploration and mining placer gold deposits and exploration of lode targets from both surface and underground operations from 1979-to-2009. Silverado operated in Alaska vis it’s wholly owned U.S. subsidiary Silverado Gold Mines Inc. and a private company, Tri-Con Mining Ltd.

 

During the fall of 2026, GLM staked an additional forty-eight (48), 160-acre, State-of-Alaska mining claims that overlap the original Federal Mining Claims purchased at auction in January. These new state claims were staked to cover open ground in the Nolan Creek area of interest as a result of the Pipeline Corridor land transfer from Federal (U.S. Government) domain to State of Alaska domain. Acquisition by GLM of the Alaska state claims depicted in Figure 3.2 will ensure that the original historic federal claims purchased by GLM from the 2026 auction are not compromised by third parties as a result of the new federal-to state transfers being acted upon in the Pipeline Corridor. All of the mining claims occur in the Wiseman B-1 USGS quadrangle of northern Alaska.

 

1.2        Geology and Mineralization

 

The bedrock geology of Nolan Creek is dominated by units of the Brooks Range schist belt, a poly-deformed package of schist, greenstone, and orthogneiss. The schist belt is part of the Coldfoot sub-terrane of the Arctic Alaska terrane, which underlies more than 75% of the south flank of the Brooks Range.

 

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The Workman’s Bench and Pringle Bench properties contain quartz-stibnite-gold veins that cut a high-angle, structurally controlled zone that is 150 ft to 300 ft wide (45-to-91 m) and at least 1,600 ft (488 m) in length. These quartz-only and stibnite-quartz (gold) veins strike northeast and cross-cut low angle cleavage at steep to vertical angles. Besides locally massive stibnite, the quartz-carbonate vein stock works also contain arsenopyrite.

 

The gold-stibnite-quartz veins of Nolan Creek Valley strongly resemble the gold-antimony deposit type (U.S. Geological Survey Deposit Model 36C). These deposits are characterized by the presence of stibnite, berthierite, high fineness gold, and aurostibnite hosted in metamorphosed, quartz-carbonate-bearing, compressive shear zones within low grade, greenschist facies metamorphic rocks. The deposit types are characterized by deformed, ductile fabrics and tectonically re-crystallized, fine grained, granoblastic stibnite lobes and lenses.

 

The gold-antimony deposit type 36C is considered to be a sub-type of the mesothermal, auriferous lodes found in mineral provinces worldwide. Mineral deposit type 36C is not very well documented in North America but well studied in Asia, Europe, and Africa. Worldwide examples include deposits in the Transvaal of South Africa, the Reefton District in New Zealand, and deposits in Eastern Europe and in Russia. Olympiada in Siberia is an example of a large, productive gold-stibnite deposit of this type. The Olympiada deposit is currently one of the worlds’ largest producers of antimony—which is produced as a byproduct of the mainly gold-mining operation there. Placer gold deposits eroding from the Sb-Au vein deposits have formed in valleys and on benches of Nolan Creek valley and the Hammond River areas.

 

1.3        Status of Exploration

 

Most of the exploration on the property occurred during 1979-2009, when the previous owner explored both placer and lode (hardrock) prospects in the Nolan Creek claim area. From 1979-to-2006, Silverado drilled 910 reverse circulation (RC) holes totaling 58,756 feet (17,913 m) in search of placer gold resources. About 90 percent of these drill holes were conducted on claims now owned by GML/USAC.

 

From 1981-to-2009, the previous owner drilled seventy-two (72) relatively shallow (454 feet TD maximum) diamond drill core holes totaling 21,144 feet (6,446 m) to explore the Workman’s Bench and Pringle Bench antimony-gold deposits. In addition, the previous owner conducted 70.28 line miles of VLF/EM) geophysical surveys and 4,672 feet of trenching on the Workman’s Bench and Pringle Bench antimony-gold deposits.

 

About 1,283 soil and stream sediment samples have also been collected by the previous owner on the GLM property. To the QP’s knowledge, there has been no further exploration of mineral resources on the property since 2011.

 

1.4        Development and Mine Operations

 

From 1979-to-2007, the previous owner produced 23,150 oz placer gold from 271,771 yds3 of pay gravel from a variety of surface and underground placer mining operations. No further development occurred after 2011.

 

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1.5        Mineral Resource Estimate

 

Mr. Thomas K. Bundtzen, President of Pacific Rim Geological Consulting Inc. (Pacific Rim), an independent Qualified Person (QP) for the writing of this Technical Report, has estimated Indicated placer gold resources in Nolan Creek valley, and Measured, Indicated and Inferred lode antimony and lode gold mineral resources on Workman’s Bench and Pringle Bench. No Mineral Reserves are included in this report. The QP reports only Measured, Indicated, and Inferred Mineral Resources in this Initial Assessment of the subject property.

 

Indicated Placer gold mineral resources, Nolan Creek

 

Resource
category
Cut-off grade
(oz/cu yd Au)
Quantity
(cu yd)
Grade
(oz/cu yd Au)
Metal
(oz Au)
Indicated 0.06 66,800 0.095 6,250

 

  The effective date of these resources is July 29th, 2008; amended September 15th , 2026
  Rounding may result in some discrepancies.
  No processing recovery factors have been applied to these resources
  The industry standard unit of quantity for Alaskan placer deposit is cubic yards. The weight of a cubic yard averages about 2.4 short tons.

 

Measured and Indicated lode antimony-gold resources, Workman’s Bench

 

Resource Cut-off grade Quantity Grade Metal Grade Metal
Category (% Sb) (ton) (% Sb) (ton Sb) (oz/ton Au) (oz Au)
Measured 4.0 53,616 26.27 14,089 0.372 19,968
and            
Indicated            

 

  The effective date of these indicated resources is July 12th, 2011; amended on September 16th, 2026
  Cut-off grade is 4.0% Sb ‘equivalent’, which refers to the combined values of gold plus antimony expressed in terms of percent antimony.

 

Total Inferred lode mineral resources, Workman’s Bench and Pringle Bench

 

Resource Deposit Cut-off grade Quantity Grade Metal Grade Metal
Category   (% Sb) (short tons) (% Sb) (ton Sb) (oz/ton Au) (oz Au)
Inferred Pringle 4.0 12,817 19.61 2,513.8 0.499 6,390.4
Inferred Workman’s Bench  4.0 19,642 11.17 2,127.0 0.273 5,362.1
Total Inferred Workman’s Pringle Benches  4.0 32,459 14.29 4,640.8.5 0.362 11,752.5

 

  The effective date of these resources is March 7th, 2011; amended September 18th, 2026 . Cut-off grade is 4.0% Sb ‘equivalent’, which refers to the combined values of gold plus antimony expressed in terms of percent antimony.

 

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1.6        Mineral Reserve Estimate

 

No mineral reserve estimates have been made by the QP on mineral properties described in this Technical Report.

 

1.7        Mining Methods

 

No mining methods have been recommended by the QP for mineral properties described in this report.

 

1.8        Processing and Recovery Methods

 

No specific Processing and Recovery Methods are recommended by the QP for the mineral properties described in this report; pending further acquisition of information by GLM.

 

1.9        Capital and Operating Costs

 

No Capital of Operating Costs have been made on the mineral properties in this Technical Report.

 

1.10      Economic Analysis

 

No economic analysis has been made on the Nolan Creek properties for the purposes of this Technical Report.

 

1.11      Infrastructure

 

The previous owner of the mineral property maintained a self-sufficient camp that included camp infrastructure capable of housing thirty (30) mine employees, machine shops, and a diesel power plant (see Figure 4.4 of this Technical Report). A 2007 upgrade project included:

 

·The purchase and installation of a ten room housing unit;

 

·The construction of an engineering office;

 

·The upgrading of laboratory facilities;

 

·The installation of a new sewage treatment facility;

 

·The construction of a new kitchen and cafeteria; and

 

·The installation of new communications equipment.

 

·Installation of 2,500 gallon plastic holding tanks for water needs.

 

However, all of these facilities are in a state of disrepair and cannot be used.

 

The QP does not recommend any construction of new infrastructure, pending a complete review by GLM of what current camp infrastructure is salvageable and what, if anything, must be removed from the site.

 

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1.12      Permitting Requirements

 

Presently a mixed property ownership exists between the State of Alaska and the U.S. Interior Department Bureau of Land Management. This manifests itself in both state and federal mining claims. The state of Alaska has General Selection Lands (GS 5167) Ta’d surrounding the active GLM federal Mining claims and an ANILCA Top Filing covering the active federal mining claims owned by USAC. GLM has also located State of Alaska mining claims over the active federal mining claims to protect its claim ownership position. This process has been used numerous times to facilitate ownership transfer from BLM to the State of Alaska for high value mineral lands. Currently, permit requirements include the following:

 

Alaska Department of Natural Resources

 

Alaska Placer Mining Application (APMA AAC Title 27, AS 38.05)

Approved Plan of Operations (AAC Title 27, AS 38.05)

Approved Reclamation Plan (AAC Title 27, 38.05)

Approved Mine Closure Plan (AAC Title 27, 38.05)

Temporary Water Use Permit (TWUP 11 AAC 93.035, 93.220)

 

Alaska Department of Environmental Conservation

 

APDES (Authorized under the federal Clean Water Act, 33 U.S.C. 1251-1387 and implemented in Alaska by 18 AAC Chapter 83) 

Storm Water Plan, SWPPP; (AS 46.03.100; 18 AAC 83.615)

Industrial Waste Water Permit (APDES Program) 

Solid Wate Permit (ACC Title 17, AS Title 16)

Air Quality Permit (AS 46.14, 18 AAC 50)

 

Alaska Department of Fish & Game

 

Title 16 Habitat Permit (AS Title 16)

 

U.S. Army Corps of Engineers

 

404 Wetlands Permit (Clean Water Act)

 

U.S. Bureau of Land Management

 

Plan of Operations Approval 

Environmental Assessment (EA, National Environmental Policy Act of 1969, 43 CFR Part 46) 

Reclamation Plan (30 U.S. Code 1258 Supplemented by 43CFR Part 3600, Subpart 3601 and related BLM manuals)

 

GLM will have to pay taxes to the Alaska Department of Revenue; complete required maintenance of the Nolan Road from the Alaska Department of Transportation and Public Facilities; and conform with guidelines set forth by the Alaska State Historical Preservation Office, if artifacts are encountered.

 

1.13      Qualified Person’s Conclusions and Recommendations

 

The QP does not make any specific recommendations to GLM for advancing their indicated placer gold resources in Nolan Creek Valley. If those resources become a priority for development, GLM should attempt to determine whether the paystreaks occur in dry versus wet environments.

 

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GLM should complete additional infill diamond core drilling on Workman’s Bench. Workman’s Bench should be the top priority because it contains the best chance thus far known for documenting consistent widths and grades of stibnite-quartz-gold mineralization. The exploration focus on ‘A’ Zone previously described but also include subsidiary vein systems. Drill-testing the zone of inferred mineralization should be given a high priority. A drill priority should also be to drill-test Pringle Bench.

 

The diamond drill core should be of a larger size than the modified NQ core previously used--not necessarily due to high recovery as the older NQ core was satisfactory in producing high recovery rates. Instead, use of larger diameter ‘P’ core and a drill rig capable of drilling to 1,000 foot depths (or more) could greatly assist in determining the overall vertical extent of the mineralizing system. In order to accomplish the drill-testing, Pringle Bench should be scrapped off much like it was prior to 2011.

 

GLM should build on environmental baseline work initiated by the previous owner. On behalf of the previous owner, SRK Consulting initiated base line studies on the property in 2008, but none have been completed since. GLM should advance baseline studies through investigations of geochemical characterization, meteorological precipitation, hydrological steam run-off (including storm water) prediction and mixing zone potential. An early significant conclusion from past environmental work is that un-weathered materials have a neutral pH; hence an Acid Rock Drainage (ARD) mitigation plan should be aimed at minimizing oxidation of waste rock and ore materials during disposal and in-capsulation of material. GLM should advance baseline studies through investigations of geochemical characterization, meteorological precipitation, hydrological steam run-off (including storm water) prediction and mixing zone potential. Large samples taken underground should be run using acid-base accounting procedures. In similar fashion, selected core of both mineralized vein and wall rock material from representative drill holes along strike and at depth should be split for the expressed purpose of acid-base accounting analyses. Large samples taken underground should be run using acid-base accounting procedures.

 

To the QP’s knowledge, the previous owner was not engaged in any partnerships or agreements with outside parties. The leading landowner in the area is Doyon Limited (Doyon), a regional native corporation based in Fairbanks. Doyon owns lands immediately west of the Nolan Creek area, which juxtaposes the Gates of the Arctic National Park and Preserve. Doyon is currently in partnership with Wiseman Metals, a subsidiary of MDF-Global, on a district-scale evaluation of copper-precious metal ‘skarn’ and ‘porphyry’ style copper mineralization north-northeast of Coldfoot.

 

The 415 pound bulk sample collected in 2008 by the QP and processed by Hazen Research in Colorado yielded promising results concerning the beneficiation of the antimony-gold mineralization for the Nolan lode project (see Chapter 10 of this Technical Report). That bulk sample was collected underground from the main ‘A zone’ on Workman’s Bench. The QP suggests that four (4) additional bulk samples of vein-fault mineralization be collected: 1) another bulk sample from ‘A’ zone on Workman’s bench using both underground and surface exposures and selected core where available; 2) a bulk sample from the ‘B’, West, and ‘C’ mineral zones on Workman’s Bench; 3) a bulk sample from the ‘A’ zone on Pringle Bench; and 4) a bulk sample from other mineralized zones on Pringle Bench. Collecting more metallurgical data will allow GLM to continue to refine their mill-plans and provide increased confidence to a potential market for their stibnite-gold concentrate products. GML/USAC may then elect to construct a pilot plant on-site and process larger amounts of mineralized materials.

 

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The QP does not recommend work on a tailings facility until information acquired from mineral processing, geotechnical, environmental or infill drilling programs are completed and when a Proven Reserve has been established.

 

Mineral reserves cannot be established until a fundamentally upgraded, technical analysis is completed from previous studies. A positive reserve analysis was provided in Chapter 18 of previous Technical Report issued by the QP in his Technical Report for the previous owner of the Nolan Creek claims.

 

However, economic assumptions for the 2011 reserve study on properties currently held by GLM have significantly changed. Commodity prices have improved dramatically, but inflationary costs for fuel, groceries, equipment, labor and many other factors have driven costs significantly upward for operating a mineral development in Nolan Creek valley. In addition, the 2011 mine model envisioned use of the Nolan Camp facility as a base for developing underground mining operations. That camp facility is currently in a state of fundamental disrepair and cannot be used in a reserve analysis of the lode-antimony-gold deposits on the subject property.

 

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2.0     INTRODUCTION

 

2.1        Registrant Information

 

United States Antimony Corporation; referred to in this Technical Report as ‘USAC’ (NYSE American; UASE; NYSE Texas; UAMY) is a critical minerals company focused on the production of antimony and zeolites. USAC owns and operates two antimony smelters in North America located in Thompson Falls, Montana and in Madero, Mexico respectively. Besides antimony, USAC operates the Bear River zeolite mine in Idaho, producing a mineral product for water filtration, agriculture and environmental remediation. Great Land Minerals LLC (GLM), which purchased the claims in the Nolan Creek area in 2026, is a wholly owned subsidiary of USAC.

 

2.2        Terms of Reference and Purpose

 

This Technical Report was requested by U.S. Antimony Corporation (USAC).

 

According to government reports, historic placer gold production in the Koyukuk mining district is estimated at about 350,000 oz of placer-style gold and a small amount of stibnite (ore of antimony) since 1894. Nearly half of the total gold production was sourced in the Nolan Creek basin, which is partially claimed by USAC. Nolan Creek is about 175 mi (280 km) north-northwest of Fairbanks, Alaska. Rather than placer gold, this analysis focuses on the lode antimony-gold deposits on properties in Nolan Creek basin held by USAC. The independent Qualified Person, Mr. Thomas K. Bundtzen, President of Pacific Rim Geological Consulting Inc. (Pacific Rim), is responsible for this Technical Report. Henceforth Mr. Bundtzen is referred to as the QP.

 

The primary purpose of this Technical Report is to disclose lode antimony-gold mineral resources for USAC’s holdings in the Nolan Creek Area (Nolan Creek) of the historic Koyukuk Mining District of Northern Alaska.

 

2.3        Sources of Information

 

The sources of information are numerous and include U.S. Government, State of Alaska, and unpublished private company reports, which are detailed in the References section of this report. Geological mapping and framework studies summaries of the Nolan Creek area have been published by Maddren (1910, 1913), Brosge and Reiser (1970), Dillon (1989), Dillon and others (1986), Dillon and Reifenstuhl (1990), Moore and others (1994), Mull (1989), and Eden (1999, 2000).

 

Reed (1938) provided a comprehensive summary of all gold exploration and production activities in the Koyukuk District including detailed descriptions of activities in Nolan Creek area, including USAC’s holdings. Kurtak et al (2002) provides an exhaustive summary of all historic mining activities in the Koyukuk district, with an emphasis on activities in the Wiseman quadrangle where the USAC properties reside.

 

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2.4        Personal Inspection Summary

 

During his career with the Alaska Department of Natural Resources, Division of Geological and Geophysical Surveys, the QP completed geological mapping and mineral resource investigations on some mineral properties described in this Technical Report. The author visited Nolan Creek in 1994, when the previous owner was producing placer gold from Mary’s underground and Ogden-Eureka open cut placer deposits, and witnessed placer gold processing activities. The purpose of the 1994 trip was to observe the previous owner’s gold production activities, which were subsequently described in the State of Alaska Minerals Report series (Swainbank et al, 1995).

 

In 1999, the QP sampled and mapped stibnite-gold lodes on Smith Dome and Pringle Bench, which constitutes a part of GLM/USAC’s lode claim group in the area. The QP’s 1999 work in the Koyukuk Mining District was completed on behalf of North Star Exploration Inc., a junior mining company based in Denver, Colorado. From November 14 to 15, 2004, the QP visited the previous owner’s operation at Nolan Creek, where he examined current infrastructure, and discussed with geologists Brian Flanigan and Edward Armstrong the technical databases stored on the property.

 

During April 22 to 24, 2008, the QP examined stibnite mineralization in the Workman’s Bench underground workings, collected channel samples to cross-check those collected by Silverado geologists, mapped the geological features, and acquired a large bulk sample for laboratory bench testing. During June 13 to 14, 2008, the QP examined all mineralized intercepts from the 2007 core drilling program on Workman’s Bench and examined and sampled surface exposures of stibnite mineralization also on Workman’s Bench.

 

On 2008, the QP visited Nolan Camp and examined all significantly mineralized core intervals acquired from the 2008 exploration of the Workman’s bench property (Bundtzen, 2008a, 2008b, 2008c. A total of 124 mineralized intervals as cut in drill core were inspected by the QP.

 

During portions of July 23-25, 2009, the QP reviewed the previous owner’s 2009 drill program at Nolan Creek with Karl Sharp, the company geologist. During parts of the time interval August 13-29, the QP inspected the following technical items acquired by him from Karl Sharp: 1) certified analytical results of drill core intervals; 2) photos for surface and subsurface exploration activities; 3) EXCEL spread sheets of the data acquired during the drill program; 4) core logs from all holes that had been completed; 5) Sharp’s preliminary interpretations of the structural corridors drilled during the season; and 6) surveys of drill collar locations in UTM coordinates and elevations based on the NAD27AK datum. At the QP’s request, selected sections of core were brought to his Fairbanks office later in September for further inspection. Because the most important, mineralized structure—the A zone—exhibits a peculiar fine-grained granoblastic texture, comparisons between underground samples collected by the QP in 2008 and the samples brought to Fairbanks by Sharp were made by the QP in his office. During December 11-17, the QP reviewed with Karl Sharp all of the data acquired during the 2009 drill program including his (Sharp’s) structural interpretation of the mineralization encountered and his thoughts on previous exploration work completed in 2007 and 2008. During this last effort, the QP inspected a total of 23 new mineralized intercepts.

 

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2.5        Previously Filed Technical Reports

 

In December, 2004, the QP produced an Independent Technical Review of the Nolan Creek area for the previous owner (Bundtzen, 2004). That document reviewed all aspects of mineral activities, including exploration, development, and mining activities, environmental remediation steps needed for compliance, and permitting issues at all of their properties held in the Fairbanks and Koyukuk districts by Silverado. Comprehensive in nature, the report format was designed to be compliant with Technical Report formatting.

 

In July, 2008, 2009, and in 2011, the QP completed the Canadian National Instrument (NI) 43-101-compliant documents: 1) Estimation of Lode and Placer Mineral Resources, Nolan Creek, Wiseman B-1 Quadrangle, Koyukuk Mining District, Northern Alaska, July 29, 2008; and 2) Update on lode mineral resources and reserve estimates, antimony-gold lode deposits, Nolan Creek, Wiseman B-1 quadrangle, Koyukuk Mining district, Alaska, June, 2009; amended 2011. These documents were publicly released to the Canadian server SEDAR.

 

2.6        Units of Measure

 

Because of extensive prior use in virtually all categories of measuring, the QP has used the English system of measurements in this Technical Report. A metric conversion table is presented below.

 

Table 2. 1 Units of measure used in this Technical Report

 

Type Unit abbreviation Description (with metric conversion)
Area acre acre (4,046.86 m2)
Area ha hectare (10,000 m2)
Area km2 square kilometer (100 ha)
Area sq mi square mile (259.00 ha)
Concentration g/t grams per tonne (1 part per million)
Concentration oz/cu yd troy ounces per cubic yard
Concentration oz/ton troy ounces per short ton (34.28552 g/t)
Length ft foot (0.3048 m)
Length m meter (SI base unit)
Length mi mile (1,609.344 m)
Length yd yard (0.9144 m)
Mass g grams (SI base unit)
Mass kg kilogram (1,000 g)
Mass oz troy ounce (31.10348 g)
Mass t tonne (1,000 kg)
Mass ton short ton or US ton (0.90719 t)
Time Ma million years
Volume cu yd cubic yard (0.7646 m3)
Volume gallon U.S. liquid gallon (3.785411784 L)
Volume L litre (SI base unit)
Temperature °C degrees Celsius
Temperature °F degrees Fahrenheit (°F = °C × 9⁄5 + 32)

 

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3.0PROPERTY DESCRIPTION

 

3.1Nolan Creek Area Claims

 

GLM/USAC acquired thirteen (13) lode and twenty-three (23) placer federal mining claims in Nolan Creek valley through a Trustee’s sale in a public auction on January 30th, 2026 (Figure 3.1). The properties had been previously owned by a private company (Silverado) which conducted exploration and mining placer gold deposits and exploration of lode targets from both surface and underground operations from 1979-to-2009.

 

On December 22nd, 2015, the previous private company executed a Deed of Trust conveying a certain property in the Nolan Creek Valley of the Southern Brooks Range, Alaska to Yukon Title Company (Fairbanks) as Trustee with Alminco LLC as Beneficiary, which deed was recorded on February 3rd, 2016.

 

Because the Trustee failed to perform the Deed of Trust as promised, the Deed of Trust was assigned to Nolan Metals LLC through recordation of an assigned Deed of Trust on September 15th, 2025. A notice of Sale of the property was posted on October 23rd, 2025. A public auction was held on January 30th, 2026 in the Rabinowitz Memorial Courthouse in Fairbanks, Alaska. The property was sold to Great Land Minerals LLC (GLM) for the sum of One Million Three Hundred Thousand Dollars ($1,300,000 USD). GML is a wholly owned subsidiary of USAC.

 

During the fall of 2026, USAC staked an additional forty-eight (48), 160-acre, State-of-Alaska mining claims that overlap the original Federal Mining Claims purchased at auction in January, 2026 (Figure 3.2). These new state claims were staked to cover open ground in the Nolan Creek area of interest as a result of the Pipeline Corridor land transfer from Federal (U.S. Government) domain to State of Alaska domain. Acquisition by USAC of the Alaska state claims depicted in Figure 3.2 will insure that the original historic federal claims purchased by USAC from the 2026 auction are not compromised by third parties as a result of the new federal-to state transfers being acted upon in the Pipeline Corridor.

 

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Table 3.1 Legal Description the Federal Mining Claims acquired by GLM in January, 2026

 

Count Claim Name BLM No. TWP RNG Section Qtr. Section Type
1 Mary’s Bench FF-42437 31N 12W 27 SW placer
2 Hillside Bench FF-42438 31N 12W 27, 28 SW, SE placer
3 Highland FF-42439 31 N 12W 27 SW placer
4 No. 3 below Discovery FF-42440 31 N 12W 28 NESE placer
5 Ogden FF-42442 31N 12W 27, 28, 33, 34 SW, SE, NW, NE placer
6 No. 5 Below Discovery FF-58595 31N 12W 33,28 NE, SE placer
7 Discovery, Nolan Creek FF-62022 31N 12W 27 NW placer
8 No. 4 below Discovery FF-62026 31N 12W 28 SE placer
9 Archibald Association FF-62028 31N 12W 27 SW placer
10 Archibald #3 FF-62029 31N 12W 27 SE placer
11 Nolan 23 FF-73165 31N 12W 27 SW lode
12 Bench 26 FF-90820 31N 12W 27, 33, 34 SW, NE, NW placer
13 Bench 27 FF-90821 31N 12W 27 SW placer
14 Bench 34 FF-90828 31N 12W 27,34 SW, NW placer
15 Nolan 100 FF-90888 31N 12W 34 NW Lode
16 Nolan 111 FF-90899 31N 12W 33, 34 SE,NE,NW lode
17 Nolan 151 FF-90939 31N 12W 33 NE,SE Lode
18 Nolan 152 FF-90940 31N 12W 33 NE, SE Lode
19 Dol 1 Fraction FF-91165 31N 12W 33 NE Placer
20 Nolan 176 FF-91194 31N 12W 27, 33, 34 SE, NE, NW lode
21 Nolan 179 FF-91197 31N 12W 33, 34 NE, NW lode
22 Acme 1 FF-92686 31N 12W 28 SE, NE placer
23 Acme 3 FF-92688 31N 12W 28 SE, NE placer
24 SSH 3 FF-94008 31N 12W 27 SW 1/4 lode
25 SSH 6 FF-94011 31N 12W 27 SW 1/4 lode
26 SSH 7 FF-94012 31N 12W 33 NE 1/4 lode
27 SSH 9 FF-94014 31N 12W 33 NE 1/4 lode
28 SSH 10 FF-94015 31N 12W 33 NW ¼ , NE ¼ , SW ¼, SE ¼ lode
29 SSH 11 FF-94016 31N 12W 33 SW ¼, SE ¼, NE ¼ lode
30 Top Notch Bench FF-94686 31N 12W 33, 28, 27, 34 NW SE, SW, NW placer
31 Surething Bench FF-94687 31N 12W 27, 33, 34 SW, NW, NW placer
32 Never Sweat Bench FF-94688 31N 12W 35, 34 NE, NW placer
33 Daisy Bench FF-94689 31N 12W 34 NW placer
34 Calilion Fraction FF-94690 31N 12W 34 NW placer
35 D&C Fraction FF-94691 31N 12W 34 NW placer
36 Smith Creek #1 FF-94692 31N 12W 33, 34 NE, NW placer

 

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Figure 3.1 Map depiction of thirty-six (36) federal claims (pink) purchased by GLM in January 2026

 

 

 

Figure 3.2 Forty-eight (48) new State of Alaska Claims covering the Nolan Creek staked by USAC in the fall of 2026.

 

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4.0 ACCESSIBILITY, CLIMATE, LOCAL INFRASTRUCTURE AND PHYISIOGRPHY

 

4.1 Topography and Land Description

 

The Koyukuk Mining District is bounded on the east by the South Fork of Koyukuk River, the Alatna River on the west, the continental divide of the Brooks Range on the north, and the Kanuti River basin on the south. Elevations in the district range from 4,635 ft on Vermont Dome to about 1,220 ft on the floodplain of the Middle Fork of the Koyukuk River. Other prominent landforms present at or near Nolan Creek include Smith Dome at 4,005 ft elevation, Montana Mountain at 3,270 ft, and Midnight Dome at 3,860 ft (Figure 4.1).

 

4.2 Access to the Property

 

Nolan Creek is at the center of the Koyukuk district. Regularly scheduled commuter flights from Fairbanks to the 4,500 ft long, state-maintained Coldfoot Airport are provided by Wright Air Service Inc. Nolan Creek is road-accessible from Fairbanks via the Dalton Highway, which services the Trans-Alaska Pipeline and the North Slope oil fields. The Trans-Alaska Pipeline System (TAPS) and Dalton Highway corridor in the valley of the Middle Fork, Koyukuk River are east-southeast of the Nolan Creek property holdings. In 1985, the access road from Wiseman to Nolan Creek was upgraded to secondary standards by the Alaska Department of Transportation and Public Facilities (DOTPF). Since 2012, DOTPF has paved selected portions of the Dalton Highway. It is estimated that by 2020, about 40 percent of the highway had been paved from the Elliot Highway to Chandler Shelf, about 80 miles north of Coldfoot. USAC’s Nolan Creek property is remote and far from Alaska’s urban areas. The GML/USAC camp at Nolan Creek is located 175 air miles north-northwest of Fairbanks, Alaska’s second largest community, with a population in 2026 of about 99,500, when counting adjacent military bases.

 

4.3 Climate Description

 

Nolan Creek Valley is located about 75 mi north of the Arctic Circle. Winter usually begins in late September or early October and lasts until early April. A very brief spring is followed by summer in early June, which lasts until late August. Fall weather conditions occur for about one month in September. Coldfoot, about 15 mi southeast of Nolan Creek Valley, recorded the unofficial all-time, State of Alaska record low of −82°F in January,1989.

 

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Figure 4.1 Nolan Creek location map, showing access to claims held by GLM/USAC.

 

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4.4 Vegetation and Land Use

 

Vegetation in the area is dominantly mature white spruce forests and occasional groves of birch and alder. Although lower slopes are heavily forested, the entire area was logged during the late 19th to early 20th Centuries to provide fuel logs for cabins, for mine timbers for early underground placer mine activities, and wood for general construction activities. Currently, the timberline is at about 2,500 ft elevation. Alpine species consist of various mosses, shrubs, lichen, and wild berries.

 

Current land use in the area is primarily focused on tourism. Bed and Breakfast facilities in Wiseman host small select groups of international tourists seeking wildlife observation, dog mushing and observation of the ‘Northern Lights’. A public facility describing outdoor activities are found at the Gates of the Arctic National Park and Preserve offices in Coldfoot. Due to the currently high gold prices, there has been expansion of traditional, small scale gold mining activities in the area. Mineral exploration in the area is currently being carried out by several mining companies using rotor wing aircraft.

 

The community of Coldfoot, which is about 13 miles south of the community of Wiseman, has Alaska’s most northern gas station, grocery, bar, and public lodging facilities. The weather station at Coldfoot provides the Alaska State Weather Service with climatic condition on the Southern Brooks Range. DOTPF operates a large shop facility at Coldfoot on a year-round basis and maintains a 125 mi long segment of the Dalton Highway and the Coldfoot Airport.

 

The small community of Wiseman, with a 2010 census population of 35, is at the junction of the seven (7) mile long, secondary access road that links the Dalton Highway with Silverado’s Nolan Creek mine camp.

 

 

Figure 4.2 Coldfoot Camp, June 13th, 2026; USAC vehicle in foreground; photo by QP

 

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Figure 4.3 Main Street of Wiseman Village on June 13th, 2026. Photo by QP.

 

4.5 Availability of Required Infrastructure

 

All types of fuels related to mine infrastructure needs can be obtained from Coldfoot. Both fixed wing and rotor wing aircraft facilities can also be accessed from Coldfoot Airport.

 

The previous owner of the mineral property (Silverado) maintained a self-sufficient camp that included camp infrastructure capable of housing thirty (30) mine employees, machine shops, and a diesel power plant. A 2007 upgrade project included:

 

·The purchase and installation of a ten room housing unit;

 

·The construction of an engineering office;

 

·The upgrading of laboratory facilities;

 

·The installation of a new sewage treatment facility;

 

·The construction of a new kitchen and cafeteria; and

 

·The installation of new communications equipment.

 

·Installation of 2,500 gallon plastic holding tanks for water needs.

 

However, all of these facilities are in a state of disrepair and cannot be used. Rooms for employees involved in exploration and development activities could be housed in Coldfoot.

 

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Figure 4.4 Nolan Mine Camp as it appeared during spring, 2008; From QP files

 

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5.0HISTORY

 

5.1Mining History of Area

 

Placer gold was found on the bars of the Koyukuk River between 1885 and 1890, and the first commercial discoveries on Nolan Creek and Hammond River and tributaries were made in 1901 (Cobb, 1973). The earliest placer mines were open cuts using hand methods and sometimes mechanization. Since the ground was frozen, steam boilers were frequently deployed to mine frozen pay gravels. Beginning in 1908 deeply buried but rich gold placers were found at considerable depths of up to 200 feet; much of the ground has been acquired by GML. These ‘drift mines operated up until WWII. After WWII, most gold mines in the Koyukuk district, including those in Nolan Creek Valley, closed due to the fixed price of gold in the United States, coupled with rising inflationary challenges.

 

After the gold price was decontrolled in 1971, small scale gold mines were restarted. In 2026, an estimated six (6) mechanized placer gold mines operated in the Koyukuk district, with many using Coldfoot as a supply base.

 

Beginning in 1979, in the Nolan Valley, which now includes the claims held by USAC, placer gold deposits were developed using both surface methods such as bulldozers and excavators and underground methods using low profile mine extraction equipment and standard blasting technologies—much like what you would see in an underground hardrock mine. Gold bearing gravels were stockpiled on the surface during winter months and processed through sluice boxes on the surface during summer months. Two such operations on Nolan Creek and nearby Vermont Creek used underground methods to mine placer gold in the last 30 plus years.

 

5.2 Drilling Exploration History

 

From 1979-to-2007, approximately 910 Reverse Circulation (RC) drill holes that totaled 58,756 feet have evaluated placer gold deposits in the study area and in Vermont Creek basin to the NE. Drill holes range from 25 ft to 145 ft in depth and average 62 ft in depth. During the drill program, more than 11,750 five-ft intervals were systematically panned down the entire length of each drill hole. The drill holes were generally designed on 50 ft centers. In Nolan Creek Valley, drill hole collars are oriented along north 070° west (Bearing 290°) lines, which crosscut the northeast trend of ancestral and modern, gold-bearing fluvial deposits. The extensive drill program led to the direct discovery and subsequent development of commercial placer gold paystreaks, which were excavated on various bench deposits in Nolan Creek valley using both open-cut and underground mining methods.

 

Table 5.1 summarizes lode drilling programs conducted in Nolan Creek valley—all on ground currently held by GLM. Drilling commenced in 1993 on Thompson Pup using percussion technology and then expanded to Workman’s Bench in 1994 and Pringle Bench in 2006. Diamand core drill programs occurred on Workman’s Bench and Pringle Bench from 2007-to-2009.

 

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Table 5.1 Summary of lode drilling programs, Nolan Creek

  

Year Location Drilling Drill Amount Assay Drilling contractor
    method hole of drilling count  
      count (ft)    
1993 Thompson Pup RC 4 1,275 255 Tri-Con Mining Company
1994 Workman’s Bench RC 4 780 156 Tri-Con Mining Company
2003 Pringle Bench and Hillside RC 5 1,340 260 American Arctic Drilling
2006 Pringle Bench RC 1 300 56 American Arctic Drilling
  Total percussion (RC)   14 3,695 727  
2007 Pringle Bench diamond 11 2,415 607 Independent Contractor
2007 Workman’s Bench diamond 7 2,140 588 Independent Contractor
2008 Workman’s Bench diamond 34 11,597 627 Independent Contractor
2009 Workman’s Bench diamond 9 2,663 19 (1) Independent Contractor
2009 Pringle Bench diamond 11 2,329 23 (1) Independent Contractor
  Total diamond   72 21,144 1,863 Independent Contractor
  GRAND TOTAL NA 86 24,839 2,588 NA

 

 

Figure 5.1 Prospector #3 Multi-Purpose NQ Core Drill TM, October 22, 2007, From QP files

 

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5.3 Historical Mineral Production

 

Through 2002, about 344,990 oz of gold have been recovered from both open cut and underground placer mines in the Koyukuk District (Kurtak et al, 2002). The largest single producer has been Nolan Creek and its tributaries, Smith Creek and Archibald and Fay Gulches, which produced an estimated 185,000 oz of placer gold from 1901-to-2007, or about 54% of the Koyukuk District total. It is estimated by the QP that more than 100,000 oz of gold was produced from 1908 to 1911 by underground drift miners on Nolan Creek.

 

From 1979 to 2007, the previous owner mined pay gravel from a variety of surface and underground placer mining operations in Nolan Creek valley (Table 5.2). Production during 2003, 2006 and 2007 totaled 5,113 ounces gold. Hence the total for the Koyukuk district must be at least 350,000 ounces gold. No further development or gold production activity on the claims occurred after 2011. Total production from 1979 to 2007 was 23,150 oz of placer gold recovered from 271,771 cu yd of gravel at an average grade of 0.085 oz/cu yd gold (Table 5.2).

 

Table 5.2 Placer gold production from Silverado properties, 1979 to 2007, Nolan Creek

 

Year Location Bank cu yd Placer gold Recovered grade
(BCY) (oz) (oz/BCY)
1979 Fay Creek NA 12 NA
1981 Archibald/Fay Creek 12,166 730 0.060
1984 Archibald/Fay Creek 4,343 304 0.070
1987 Archibald/Fay Creek 20,585 1,338 0.065
1993 Thompson Pup 33,800 1,304 0.038
1994 Mary’s Bench Underground 16,143 2,697 0.167
1994 Ogden-Eureka Bench Open Cut 29,300 5,733 0.196
1995 Phase 3 Open Cut 22,285 2,394 0.107
1995 3B1 Underground 12,991 1,006 0.077
1995 West Block Open Cut 18,988 1,305 0.069
1995 Mary’s Bench Hydraulic 600 27 0.045
1996 Dolney Bench Open Cut 5,042 126 0.025
1998 Archibald Creek Open Cut 5,947 128 0.022
1999 Swede Channel Underground 4,575 623 0.136
1999 Workman’s Bench Open Cut 5,580 112 0.020
2000 Workman’s Bench Open Cut 14,919 201 0.013
2003 Nolan Deep Channel; Wool Bench, Mary’s Bench 30,279 451 0.015
2006 Swede Channel 8,896 951 0.105
2007 Swede Channel and Mary’s East 25,332 3,711 0.146
Total   271,771 23,153 0.085

 

In 1948, approximately 5.0 tons of high-grade selected stibnite ores were produced from an open-cut operation on Pringle Bench, which occurs on claims now held by GLM. These hand sorted ores were shipped to a refinery in Texas.

 

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Figure 5.2 Low profile truck used in underground placer mining, circa 2006; from QP files

 

 

 

Figure 5.3 Washing plant processing pay gravels, 2005-2007, Swede Channel project; from QP files.

 

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6.0GEOLOGICAL SETTING, MINERALIZATION, AND DEPOSIT

 

6.1Regional Geology

 

The bedrock geology of the Wiseman-Nolan Creek area has been described by several previous workers including Maddren (1910, 1913), Brosge and Reiser (1970), Turner et al (1979), Dillon et al (1986), Mull (1989), Dillon (1989), Dillon and Reifenstuhl (1990), Moore et al (1994), and Eden (1999, 2000). The following geologic discussions use information from all of these sources. After review of published geological mapping, the QP selected the map provided by Dillon and Reifenstuhl (1990) for display of the most relevant and accurate information used in this Technical Report.

 

The bedrock geology of the general area is dominated by units of the Brooks Range ‘Schist Belt’ or Province, a poly-deformed package of schist, greenstone, and gneiss. The Schist Belt is part of the Coldfoot sub-terrane of the Arctic Alaska Terrane, which underlies more than 75 percent of the south flank of the Brooks Range. The Coldfoot sub-terrane is composed of Proterozoic to Middle Devonian, poly-metamorphic meta-sedimentary rocks which have been intruded by Devonian granitic plutons and overlain by also bimodal meta-volcanic rocks also of Devonian age (Dillon, 1989). Although no fossils have been found, chloritic metasiltstone (Dbcs), black slate and phyllite (Dbs), and chloritic carbonates (Dcc) are correlative with the Devonian Beaucoup Formation, as summarized by Mull (1989). The Beaucoup Formation and other metamorphosed rocks in the Wiseman-Nolan Creek area are thought to be near the stratigraphic top of the Coldfoot sub-terrane (Dillon, 1989; Dillon and Reifenstuhl, 1990).

 

The Wiseman-Nolan Creek area has been subjected to the effects of Pleistocene glaciation, which has carved U-shaped valley profiles in the valleys of Wiseman, and Jap Creeks, and the main trunk valleys of the Hammond and Middle Fork of the Koyukuk Rivers. Glaciers from the Middle Pleistocene Sagavanirktok Glaciation traversed at high elevations down trunk valleys along the entire flank of the southern Brooks Range, reaching lowland areas in the lower Chandalar River on the east, the Kanuti Flats to the south, and Kobuk River to the west (Hamilton, 1979, 1986). Glacial drift of the Sagavanirktok River Glaciation (Qd1) occupies hill slopes, low saddle areas, and high level cirques to maximum elevations of about 3,200 ft.

 

According to Dillon (1989), Mull (1989), Dillon and Reifenstuhl (1990), Moore et al (1994), and Eden (1999), two and possibly three well-defined periods of regional dynamo-thermal metamorphism have affected the layered rocks of the Coldfoot sub-terrane in the Wiseman-Nolan Creek. These layered metamorphic rocks, which monoclinally dip to the north throughout the map area, contain a complex fold and faulting history; fold axes generally strike northeast with fold vergence in several directions. Schistosity is defined on two discrete cleavage surfaces. The oldest (S2), parallels bedding and the youngest (S3), is a semi-penetrative axial planar feature that probably formed during a thrust or recumbent folding event (Dillon and Reifenstuhl, 1990; Eden, 1999). Several thrust planes have been mapped at Nolan Creek. During Late Jurassic to Early Cretaceous time, the rock units of the Coldfoot sub-terrane including the Beaucoup Formation were thrust over thrust panels to the north and outside the study area. Brittle deformation began to form as the last regional metamorphic gradients subsided in mid-Cretaceous time.

 

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6.2 Local and Property Geology

 

The Coldfoot sub-terrane underlies most of the valley of Nolan Creek (Dillon, 1989). The Beaucoup Formation and other metamorphosed rocks in the Wiseman-Nolan Creek area are thought to be near the stratigraphic top of the Coldfoot sub-terrane (Dillon and Reifenstuhl, 1990).

 

Although Dillon and Reifenstuhl (1990) do not describe non-metamorphosed or metamorphosed intrusive rocks at Nolan Creek, Eden (1999, 2000) describes metabasite dikes near the mouth of Steep Gulch. Granite gneiss yields U/Pb ages of 360 Ma on the western slopes of the Middle Fork Koyukuk River valley, about 10 mi south of Nolan Creek. These Middle Devonian granitic intrusions, which were metamorphosed along with the host Beaucoup Formation, could conceivably underlie Nolan Creek at depth.

 

Dillon and Reifenstuhl (1990) and Eden (1999) map west-dipping, northeast-striking reverse faults in Nolan Creek valley that post-date fold deformation thrusting and are thought to be the result of east-west compression documented in other areas of the southern Brooks Range. This brittle deformational event produced a NE/NW, high-angle, orthogonal fault pattern that host the antimony-gold-quartz deposits that constitute a prime focus of this Technical Report.

 

The more youthful V-shaped profiles in Nolan and Vermont Creeks reflect erosional profiles that post-date the major glacial events described above, and there is no evidence that Late Pleistocene ice ever developed in Nolan Creek Valley or tributaries. Steepened valley walls are now covered by a mixture of colluvial-landslide, solifluction, and talus deposits (Qcl, Qcs, Qct units). Modern stream alluvium underlies the course of present Nolan, Smith, and Wiseman Creeks and tributaries of the Hammond River (Qa unit).

 

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Figure 6.1 Geologic map of the Nolan Creek area Koyukuk District; modified from Dillon and Reifenstuhl (1990).

 

 

 

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6.3 Alteration and Mineralization

 

Northeast-trending, steeply dipping, auriferous stibnite-quartz veins cut phyllitic schist on Workman’s Bench on the left (south) limit of Smith Creek about 800 ft upstream from its confluence with Nolan Creek (Eden, 1999). The mineralization on Workman’s Bench is almost certainly correlative with the stibnite-gold-quartz veins exposed in placer cuts and trenches on the Pringle Bench north of Smith Creek, which have been known since the early 20th Century (Killeen, 1942; Ebbley and Wright, 1948).

 

Mineralization consists of quartz-sulfide veins cutting host Beaucoup Formation that mainly consist of stibnite, arsenopyrite, and minor Sb-sulfosalts. Free gold is associated with both arsenopyrite and stibnite.

 

6.4 Deposit Types

 

Placer gold deposits in the Nolan Creek and Hammond River areas can be classified as an ‘Incised Glacio-Fluvial’ subtype of heavy mineral placer deposits (Maddren, 1913; Laznika, 1985). The Koyukuk District examples, especially on Nolan Creek, probably formed in similar fashion to that observed in the Valdez Creek district of south-central Alaska, Alaska’s largest placer gold mine during the 1980s and 1990s (Reger and Bundtzen, 1990); the Chandalar district east of the Koyukuk district; the Porcupine district in southeast Alaska; the Cassiar-Caribou district of British Columbia, Canada (Knight and McTaggart, 1989); and the Bolotny-Ravkosky district in northeast Russia (Tchapko,1995).

 

Different explanations have been advanced for the origin of the placer deposits in Nolan Creek. Maddren (1913) believed that the left limit, bench deposits such as the Mary’s Bench, Swede, West Block, and Ogden-Eureka Bench placers may be remnants of narrow, crudely washed beaches formed along the mountain sides when Nolan Creek was an arm of Glacial Lake Wiseman.

 

The Workman’s Bench and Pringle Bench properties contain quartz-stibnite-arsenopyrite-gold veins. These quartz-only and stibnite-quartz (gold) veins strike northeast and cross-cut low angle cleavage at steep to vertical angles. Besides locally massive stibnite, the quartz-carbonate vein stock works also contain arsenopyrite.

 

The Workman’s Bench and Pringle Bench properties contain quartz-stibnite-gold veins that cut a high angle, structurally controlled zone that is 150 ft to 300 ft wide and at least 3,500 ft in length. These quartz-carbonate-sulfide and stibnite-quartz (gold) veins strike north 45° east and cross-cut low angle cleavage at steep-to-vertical angles. Besides locally massive stibnite, the veins also contain local arsenopyrite. According to Ebbley and Wright (1948), individual quartz-sulfide veins north of Smith Creek ranged from1 inches-to-4 inches thick and can be traced for at least 400 ft of strike length. This area, now known as ‘Pringle Bench’, contains individual quartz-sulfide (stibnite) veins up to 1.5 feet in thickness, based on 2009 Silverado exploration work.

 

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Bedrock units on Workman’s Bench and Pringle Bench consist of dark gray, carbonaceous phyllite and schist, light gray quartz-rich meta-sandstone, greenish gray chlorite rich muscovite schist, and occasional lenses of calcareous chlorite schist. Isolated boudins of greenstone-gabbro have also been observed, but not in place. The layered rock units have been deformed by both open and sub-isoclinal folds. Metamorphic foliation in the hanging wall and footwall zones of the vein-fault zone is normally shallow, with dips of less than 45°. S1 foliation usually parallels compositional banding, but locally, a conspicuous S2 secondary cleavage crosscuts compositional banding at a high angle. Northeast and northwest-striking, high angle fault zones and low angle thrust faults cut the metamorphic rock basement.

 

Lode mineralization at Workman’s Bench and Pringle Bench systems consists of a northeast-striking, steeply dipping zone of gold-bearing, quartz-stibnite veins and veinlets. At Workman’s Bench, stibnite-bearing veinlets occur from 86 ft-to-234 ft from the portal or over a width of about 150 ft. Because the drift was cut perpendicular to strike, this represents a true thickness of the vein-veinlet swarm. A more focused zone of quartz stibnite vein concentration occurs mainly from 136 ft-to-234 ft or an estimated width of about 98 ft, where 67 individual veins were identified. Within the ‘Crosscut A’ zone, 21 of the veins contained identifiable stibnite. In the ‘Crosscut C’ zone, the same mineralized stock work veins occur from 120 feet-to-228 feet or an estimated width of 108 ft. Within this measured width, 79 individual veins were identified, 22 of which contain stibnite.

 

At Pringle Bench, which is the northeasterly extension of the Workman’s Bench system, the same stibnite-quartz vein-fault system widens to nearly 400 ft in three subsidiary zones. In 2009, the ‘A zone’ vein fault was recognized on Pringle Bench—the same zone that contains the bulk of the known mineralization on Workman’s Bench.

 

A majority of veins observed in either trenches, core, or underground workings exhibit nearly horizontal slickensides, suggesting intrusion of hydrothermal fluids along fault zones and lateral movement subsequent to vein emplacement.

 

Geologists recognized that distinct near-vertical vein-fault structures could be recognized in drill core and in the underground workings on the basis of both spatial relationships and physical features. All of these structures strike approximately north 45o east, and can be traced for variable lengths along strike. The strongest mineralized vein-fault is designated ‘A’ zone, which exhibits evidence of post-mineralization movement. Others include ‘B’ zone, ‘West’ zone, and ‘C’ zone. Detailed physical characteristics of these structures and how they are recognized during exploration are found in Chapter 11 of this Technical Report.

 

Polished section analysis shows that two basic fabrics are observed in the stibnite (aurostibnite)-quartz veins:

 

·Simple, twinned stibnite blades and grains showing resorption textures with euhedral, quartz crystals and grains.

 

·Extensive shearing and local coarsening of sulfide grains (mainly stibnite), 120° triple junctions in mono-mineralic stibnite, and recrystallization of gangue minerals (quartz) that indicate dynamic metamorphism.

 

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Mineralization in the ‘A’ zone’ at Workman’s Bench contains a shear fabric consisting of parallel lamina of recrystallized stibnite. These fabrics are referred to in the literature as thermal metamorphic textures (i.e., Ineson, 1989). The sheared fabric results in a fine-grained stibnite exhibiting a distinct granoblastic texture, which contrasts with the other subsidiary stibnite-bearing veins-faults that contain coarser grained stibnite grains and blades. Microprobe analyses by Cannon Microprobe Inc. document that siderite (as gangue) and accessory arsenopyrite occur in the stibnite-bearing zones along vein selvage zones (Figure 6.2).

 

More than 90% of the veins and veinlets dip steeply southeast, with dips ranging from 50° to 85°. A few veins dip steeply northwest. A system of east-west to northwest striking, moderately dipping vein-faults cut through the underground workings. The QP observed that these faults both offset, to a minor degree, the northeast-striking, stibnite-bearing veins, but are also cut by other northeast-striking stibnite veins.

 

Figure 6.2 Photomicrographs, Workman’s Bench mineralized system

 

 

 

The gold-stibnite-quartz veins of Nolan Creek Valley strongly resemble the gold-antimony deposit type (Berger, 1986; U.S. Geological Survey Deposit Model 36C). These deposits are characterized by the presence of stibnite, berthierite, high fineness gold, and aurostibite hosted in metamorphosed, quartz-carbonate-bearing, compressive shear zones within low grade, greenschist facies metamorphic rocks. The deposit types are characterized by deformed, ductile fabrics and tectonically recrystallized, fine grained, granoblastic stibnite lobes and lenses.

 

The gold-antimony deposit type 36C is considered to be a sub-type of the mesothermal, auriferous lodes found in mineral provinces worldwide (Berger, 1993; Laznika, 1985; Hodgson, 1993). Radiogenic leads characterize gold-bearing vein deposits of the Brooks Range (Gacetta and Church, 1989). This data reinforces the classification of the Nolan lode deposits as mesothermal in origin. Mineral deposit type 36C is not very well documented in North America but well studied in Asia, Europe, and Africa. Worldwide examples include deposits in the Transvaal of South Africa, the Reefton District in New Zealand, and deposits in Eastern Europe and in Russia. Olympiada in Siberia is an example of a large, productive gold (stibnite) deposit of this type.

 

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7.0 EXPLORATION

 

From 1978-to-2009, Silverado explored for placer gold and lode gold deposits on federal claims in Nolan Creek basin, which are now owned by GLM.

 

7.1 Exploration of Heavy Mineral Placer Deposits

 

Placer gold exploration in Nolan Creek basin was primarily carried out using Reverse Circulation (RC) drilling technology. The RC drill program identified a system of left-limit benches situated east of the main channel immediately east of Nolan Creek valley. Figure 7.1 illustrates the channel configurations of 771 drill collars as determined from drill campaign conducted on the property from 1979-to-2005.

 

Drill holes range from 25 feet-to-145 feet in depth and average 62 feet in depth. During the drill program, more than 11,750 five-ft intervals were systematically processed and panned down the entire length of each drill hole. The drill holes were generally designed on 50 ft centers. In Nolan Creek Valley, drill hole collars are oriented to 2900, which crosscut the northeast trend of ancestral and modern, gold-bearing fluvial deposits.

 

The pattern illustrates the steeply incised nature of the Nolan Deep channel, and the much more irregular incised depressions and channel cuts on the left limit of Nolan Creek. Figure 7.1 does not include drilling information from 2006 and 2007 campaigns, which would likely reveal more detailed information about the bench system.

 

RC drilling was the principal exploration method used by the previous owner in the identification of placer gold deposits in Nolan Creek basin. RC drilling campaigns have led directly to the development and test mining of placer deposits at Nolan Creek. These would include successful development of the relatively high-grade Mary’s Bench and Ogden-Eureka Bench deposits in 1994; the West Block and 3B1 Underground deposits in 1995, The Swede Channel development in 1999 and 2005-2006; and the Mary’s East deposit during 2007.

 

In general, placer gold deposits were evaluated with a line of fences that were interpreted to be perpendicular to the trend of the fluvial channels. Holes were spaced 50-75 feet apart. The drilling campaigns concentrated mainly on the main channel of Nolan Creek above the previous owners camp and along the left limit bench deposits east of camp. Drill fences of a more reconnaissance nature explored extensions of the main Nolan Creek deposit below Silverado’s camp, in the headward portions of Smith Creek and on high altitude benches north of Fay Creek.

 

Figure 7.2 illustrates the channel configurations as determined from the drilling campaign conducted prior to 2006 at Swede Channel, a left limit fluvial deposit east of the main Nolan Creek valley. During the drill program, the different geological units were logged along with depth to bedrock. Drilling completed in 1999 yielded a strong gold anomaly in a channel-like depression. This drill hole, MB42A, eventually led the previous owner to test this anomaly with underground test-mining six years later in the fall of 2005 (Bundtzen, 2006 a, b, c).

 

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Figure 7.1 Location Map Showing Locations of 771 placer drill collars in Nolan Creek Valley placer field. 

 

 

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Figure 7.3 illustrates the general configuration of the left limit bench placers at Mary’s East, the highest level bench system so far drilled and mine-tested. Unlike Swede Channel and other drill-tested bench deposits, Mary’s East appears to be predominately a colluvial deposit composite slope debris and minor fluvial sand. It’s irregular configuration contrasts with the more sinuous features of a fluvial channel.

 

Figure 7.4 illustrates the stacked nature of bench systems on the left limit of Nolan Creek, using the mine-tested areas and the drill-indicated resources. Radio-carbon ages presented by Bundtzen and Eden (2008) indicate that the Swede and Ogden-Eureka deposits formed from 39,000-to-42,000 B.P. whereas the Mary’s East deposits formed at approximately 45,000 B.P.

 

 

 

Figure 7.2 Plan of Swede Channel Exploration and Underground Development; 2005-2006

 

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Figure 7.3 Plan of Mary’s East Underground Development and Exploration Drilling.

 

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Figure 7.4 Contour map constructed from drill data and underground workings in Nolan Creek Valley.

 

 

 

Figure 7.5 A—gold concentrate rich in arsenopyrite and stibnite; B—nuggets of gold plus stibnite—indicating a clear correlation between the two metals. Both photos from 2007 cleanup operations, Nolan Creek. Photos by the QP during 2007 cleanup activities from Mary’s Bench underground mining activities.

 

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7.2 Exploration of Antimony-Gold Lode Deposits

 

The combination of soil surveys, VLF/EM geophysical data, and past trenching on Smith Creek at Pringle Bench and Workman’s Bench laid the foundation for the interpretation of the character of lode mineralization on the GLM property. Table 7.1 summarizes the exploration activities for lode mineralization (excluding drilling, which is summarized in Table 5.1) that took place from 1981-to-2009.

 

In the summer of 2003, the previous owner modeled the resistivity data using Surfer 8.02 by Golden Software, with kriging parameters that focused on narrow target zones (Flanigan, 2003a; Flanigan et al, 2003). The modeled geophysical data resulted in the recognition of two northeast-trending 870 Hz resistivity lows, one of which more-or-less correlates with the trend of quartz-sulfide veins on Smith Creek and the associated gold, antimony, and arsenic-in-soil anomalies (7.7). This geophysical anomaly, with associated quartz-sulfide lode prospects and metalliferous soil anomalies, were referred to as the ‘Solomon Shear’ lode target (Flanigan, 2003b). Flanigan estimates that the Solomon Shear is about 1 mi long and 0.25 mi wide, with geophysical indications of extensions, possibly offset, for an additional 2 mi to 3 mi to the northeast.

 

Figure 7.6 Map of Nolan Creek Basin illustrating 870 Khz geophysical (resistivity) anomaly in gray

 

 

 

A stream sediment sample grid also covered the general area known by the previous owners geological staff as the Solomon Shear (Figure 7.8). The soils geochemistry clearly showed a direct correlation of a northeast-striking zone at least 1.5 miles long and up to 600 feet wide.

 

VLF/EM data was also acquired; however, the results did not assist in defining the mineralized structures like the resistivity and soil sampling program did.

 

 44 

 

 

Figure 7.7 Summary of 2004 and 2007 soil sample grid programs, in the Workman Bench-Pringle Bench and Hillside areas; data from previous owners.

 

 45 

 

 

An early 1993 drill campaign tested mineralization at Thompson’s Pup. Four drill holes penetrated a brownish gray phyllite with varying degrees of silicification, pyritization, and generally weak hydrothermal alteration. Arsenopyrite and trace stibnite were identified in two drill logs (93TPHR-03 and 04). At 50 ft to 55 ft in drill hole 93TPHR-04, grades were 145 ppb gold, > 1.0% arsenic (the upper limit of detection for As), and 25 ppm antimony, in association with abundant quartz veins.

 

Table 7.1 Summary of lode exploration activities, Nolan Creek, 1981-to-2009

 

Activity Sample count Drill hole count Total (ft)
Soil/stream sediment samples 1,383(1) NA NA
Rock chip samples 275 NA NA
Rotary drilling (lode) 739 14 3,695
Core drilling (lode) 1,842 72 21,144
Trenching 340(3) NA 4,672(3)
Underground exploration drifts NA NA 470
Geophysical surveys (VLF/EM) NA NA 70.28 line mi(5)
Notes:      

 

−(1) Does not include soil sampling conducted by USBLM on Silverado claims.

−(2) 5 ft intervals were panned and gold, where encountered, weighed or estimated.

−(3) Estimated from 2004, 2006, 2007, and 2009 Silverado work. Does not include exploration work completed by the federal government (USBLM).

−(4) Exploration drifting only. Does not include production or development stopes.

−(5) Does not include airborne work conducted by USBLM over Silverado claims.

 

Total amount of drilling on the subject Nolan properties was previously summarized in Table 5.1. In 1994, the previous owner completed an inaugural, short, rotary drill program to test the lode potential of the Workman’s Bench area, where stibnite-gash veins were found in a placer mine cut. A ‘first phase’ program consisted of about 750 ft of drilling in four drill holes that ranged from 130 ft-to-300 ft in depth. Figure 7.8 illustrates the results. Three different horizons display vein-hosted gold-antimony mineralization over 100 ft-to-120 ft of true width. The veins range from 0.026 oz/ton Au-to-0.086 oz/ton Au over 5.0 ft assay intervals, with up to >1.0% antimony and 4,370 ppm arsenic. One 10.0 ft assay interval averaged about 0.036 oz/ton Au, >1.0% antimony, and 3,300 ppm arsenic. Underground exposures have shown that veins dip vertical or steeply southeast, not northwest as shown in 1994 cross sections.

 

In 2006, one RC drill hole tested Pringle Bench (Table 7.2). In 2007 the previous owner purchased it’s own diamond drill rig and contracted the drilling to subcontractor Tricon, originally using BTW-sized core on the Pringle Bench and Workman’s Bench deposits. A conversion to NQ core which is larger in diameter by about ¼ inch, was made during July, 2008. NQ refers to the size of the core, which is approximately 1.75 inches in diameter. Core drilling is better suited to this narrow-vein style of deposits than RC percussion drilling.

 

During 2007, the previous owner tested closely spaced stibnite-quartz veins and veinlets at Pringle Bench north of Smith Creek using eleven diamond drill holes totaling 2,415 ft (Table 7.2). Also during 2007, Silverado drilled seven drill holes totaling 2,140 ft to test the Workman’s Bench deposit (Table 7.3).

 

 46 

 

 

 

 

Figure 7.8 Section of 1994 inaugural percussion (RC) drill hole results for Workman’s Bench; illustrating a pioneer attempt at exploring the Workman’s Bench antimony-gold deposit

 

 47 

 

 

Exploration work conducted during the latter part of 2007 and all of 2008 focused on: 1) driving 470 feet of underground drift to affirm surface and core sampling results and collection of bulk sample for a metallurgical test; and 2) completion of 72 diamond drill holes totaling 21,144 feet to test the extent of the Workman’s Bench and Pringle bench antimony-gold mineralized system. This confirmed that several parallel mineralized veins are intersected by diamond drill holes for a strike length of more than 3,500 feet (including across Smith Creek) and a maximum vertical depth of 450 feet.

 

During 2009, diamond drill core program was designed by contractor Karl Sharp to: 1) explore shallower level of Workman’s Bench southwest of the underground workings driven in 2008; and 2) test deeper levels of the Pringle Bench vein-fault system and provide for vertical extensions of the shallow inferred resource estimate reported in the 2009 NI- 43-101 Technical Report (Bundtzen, 2009). In 2009, approximately 5,000 feet were drilled in twenty holes on Pringle and Workman’s Bench. The previous owner soon recognized the need to selectively sample the thin mineralized quartz veins and changed their sampling protocol so that smaller samples, better representing these veins, could be taken.

 

Collar location, orientation data and drill footage summaries for the RC and diamond core programs on Pringle and Workman’s bench are provided in Tables 7.2 and 7.3. Coordinates for all collars were determined with the GarminTM Global Positioning System (GPS) using NAD27 Alaska datum. This datum was used because the USGS !:63,360 scale topographic maps created at that time used NAD27 Alaska datum. GPS measurements were taken 2-to-4 times to ensure that the collar was accurately located. All collar elevations are determined from the same benchmark (BM) at survey control point CP-06-01. The significance of using the same benchmark is that a much more accurate elevation estimate for each collar can be ascertained.

 

 

 

Figure 7.9 Stibnite-bearing interval in drill hole 08SH01, from 93.5 to 94.4 feet; B Massive granoblastic stibnite in DDH 09SH-05; true thickness estimated to be 1.5 feet.

 

 48 

 

 

Table 7.2 Collar location and data, Pringle Bench, 2006, 2007, and 2009 Exploration Campaigns

 

RC Drill Hole

 

DDH No. UTM Easting UTM Northing Datum Zone Collar Elevation Azimuth Dip Total Depth Core Diameter
                   
06SH01 618868.02 7486656.03 NAD 27 Alaska 5W 1801.50 320 -45 300 RC, 8 in

 

Diamond Core Drill Holes

 

DDH No. UTM Easting UTM Norhing Datum Zone Collar Elev. (ft) Azimuth Dip Total Depth (ft) Core Size
                   
07SH02 618888.00 7486745.27 NAD 27 Alaska 5W 1848.50 320 -45 212 BTW
07SH03 618867.00 7486735.00 NAD 27 Alaska 5W 1848.50 320 -45 102 BTW
07SH04 618867.00 7486735.00 NAD 27 Alaska 5W 1848.50 320 -45 284 BTW
07SH05 618889.00 7486768.00 NAD 27 Alaska 5W 1872.60 320 -45 297 BTW
07SH06 618913.00 7486776.00 NAD 27 Alaska 5W 1884.90 320 -45 139 BTW
07SH07 618931.00 7486782.00 NAD 27 Alaska 5W 1898.10 320 -45 207 BTW
07SH08 618942.00 7486790.00 NAD 27 Alaska 5W 1900.50 320 -45 182 BTW
07SH09 618942.00 7486790.00 NAD 27 Alaska 5W 1900.50 320 -45 92 BTW
07SH10 619008.00 7486676.00 NAD 27 Alaska 5W 1873.70 320 -45 301 BTW
07SH11 618985.00 7486706.00 NAD 27 Alaska 5W 1876.40 320 -45 307 BTW
07SH12 618985.00 7486704.00 NAD 27 Alaska 5W 1876.40 320 -45 292 BTW
09SH10 618918 7486843 NAD 27 Alaska 5W 1913.00 110 -45 267 NQ
09SH11 618862 7486741 NAD 27 Alaska 5W 1854.00 160 -45 142 NQ
09SH12 618862 7486741 NAD 27 Alaska 5W 1854.00 160 -60 137 NQ
09SH13 618860 7486743 NAD 27 Alaska 5W 1854.00 160 -69 267 NQ
09SH14 618927 7486755 NAD 27 Alaska 5W 1887.00 320 -45 202 NQ
09SH15 618927 7486755 NAD 27 Alaska 5W 1887.00 320 -65 222 NQ
09SH16 618967 7486802 NAD 27 Alaska 5W 1920.00 320 -45 192 NQ
09SH17 618808 7486735 NAD 27 Alaska 5W 1835.00 140 -55 139 NQ
09SH18 618879 7486722 NAD 27 Alaska 5W 1850.00 320 -60 137 NQ
09SH19 618874 7486721 NAD 27 Alaska 5W 1850.00 250 -60 282 NQ
09SH20 618874 7486721 NAD 27 Alaska 5W 1850.00 245 -65 342 NQ

 

Total Drill Holes, Pringle Bench—23

Total Drill Footage, Pringle Bench—5,044 Feet

Note—Five (5) percussion drill holes completed in 2003 that total 1,340 feet are not included in the above tabulation

 

 49 

 

 

Table 7.3 Collar location and data Workman’s Bench; 2007, 2008, and 2009 exploration campaigns

 

DDH No. UTM Easting UTM Norhing Datum Zone Collar Elev. (ft) Azimuth Dip Total Depth (ft) Core Size
                   
07SH01 618652.00 7486576.58 NAD 27 Alaska 5W 1749.10 140 -45 312 BTW
07SH13 618571.00 7486484.00 NAD 27 Alaska 5W 1776.80 143 -45 358 BTW
07SH14 618571.00 7486484.00 NAD 27 Alaska 5W 1776.80 100 -45 407 BTW
07SH15 618579.00 7486499.00 NAD 27 Alaska 5W 1776.80 100 -45 323 BTW
07SH16 618525.00 7486470.00 NAD 27 Alaska 5W 1766.00 140 -45 397 BTW
07SH17 618500.00 7486495.00 NAD 27 Alaska 5W 1763.30 140 -45 252 BTW
07SH18 618615.00 7486507.00 NAD 27 Alaska 5W 1811.00 90 -45 91 BTW
08SH01A 618669.37 7486571.13 NAD 27 Alaska 5W 1751.20 184 -45 216 BTW
08SH01B 618669.37 7486571.13 NAD 27 Alaska 5W 1751.20 140 -45 312 NQ
08SH02 618662.66 7486569.92 NAD 27 Alaska 5W 1752.71 110 -45 343 NQ
08SH03 618675.00 7486564.00 NAD 27 Alaska 5W 1755.00 140 -50 252 NQ
08SH04 618740.14 7486553.52 NAD 27 Alaska 5W 1751.00 320 -50 55 NQ
08SH05 618771.00 7486541.00 NAD 27 Alaska 5W 1751.00 320 -50 30 NQ
08SH06 618621.85 7486506.24 NAD 27 Alaska 5W 1788.00 100 -50 72 NQ
08SH07 618551.00 7486477.00 NAD 27 Alaska 5W 1777.00 140 -50 370 NQ
08SH08 618485.00 7486452.00 NAD 27 Alaska 5W 1772.00 140 -50 452 NQ
08SH09 618426.00 7486379.00 NAD 27 Alaska 5W 1762.00 140 -50 457 NQ
08SH10 618558.00 7486465.33 NAD 27 Alaska 5W 1777.00 140 -45 317 NQ
08SH11 618584.00 7486489.00 NAD 27 Alaska 5W 1780.00 140 -60 362 NQ
08SH12 618584.00 7486489.00 NAD 27 Alaska 5W 1780.00 100 -50 282 NQ
08SH13 618619.24 7486508.75 NAD 27 Alaska 5W 1788.00 90 -60 312 NQ
08SH14 618674.39 7486570.08 NAD 27 Alaska 5W 1752.00 140 -45 242 NQ
08SH15 618671.51 7486567.75 NAD 27 Alaska 5W 1752.00 180 -45 397 NQ
08SH16 618671.51 7486567.75 NAD 27 Alaska 5W 1752.00 190 -45 352 NQ
08SH17 618672.65 7486567.85 NAD 27 Alaska 5W 1752.00 140 -70 497 NQ
08SH18 618501.00 7486434.00 NAD 27 Alaska 5W 1803.00 140 -60 472 NQ
08SH19 618501.00 7486434.00 NAD 27 Alaska 5W 1803.00 140 -45 307 NQ
08SH20 618501.00 7486434.00 NAD 27 Alaska 5W 1803.00 110 -50 397 NQ
08SH21 618501.00 7486434.00 NAD 27 Alaska 5W 1803.00 170 -50 402 NQ
08SH22 618560.00 7486468.00 NAD 27 Alaska 5W 1777.00 140 -60 302 NQ
08SH23 618560.00 7486468.00 NAD 27 Alaska 5W 1777.00 165 -50 307 NQ
08SH24 618560.00 7486468.00 NAD 27 Alaska 5W 1777.00 120 -50 317 NQ
08SH25 618451.00 7486419.00 NAD 27 Alaska 5W 1765.00 140 -45 427 NQ
08SH26 618426.00 7486379.00 NAD 27 Alaska 5W 1762.00 120 -45 432 NQ
08SH27 618426.00 7486379.00 NAD 27 Alaska 5W 1762.00 140 -45 402 NQ
08SH28 618426.00 7486379.00 NAD 27 Alaska 5W 1762.00 160 -45 450 NQ
08SH29 618451.00 7486419.00 NAD 27 Alaska 5W 1765.00 110 -45 450 NQ
08SH30 618451.00 7486419.00 NAD 27 Alaska 5W 1765.00 155 -45 450 NQ
08SH31 618451.00 7486419.00 NAD 27 Alaska 5W 1765.00 140 -55 487 NQ

 

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Table 7.3 Continued Collar location and data Workman’s Bench; 2007, 2008, and 2009 exploration campaigns

 

DDH No. UTM Easting UTM Northing Datum Zone Collar Elevation Azimuth Dip Depth Core Size
08SH32 618639.00 7486563.00 NAD 27 Alaska 5W 1758.00 160 -45 307 NQ
08SH33 618639.00 7486563.00 NAD 27 Alaska 5W 1758.00 160 -45 367 NQ
09SH01 618594 7486411 NAD 27 Alaska 5W 1880.00 320 -45 257 NQ
09SH02 618594 7486411 NAD 27 Alaska 5W 1880.00 291 -50 302 NQ
09SH03 618548 7486371 NAD 27 Alaska 5W 1880.00 326 -45 302 NQ
09SH04 618564 7486387 NAD 27 Alaska 5W 1880.00 290 -55 297 NQ
09SH05 618529 7486347 NAD 27 Alaska 5W 1873.00 320 -69 342 NQ
09SH06 618530 7486350 NAD 27 Alaska 5W 1873.00 335 -66 302 NQ
09SH07 618516 7486337 NAD 27 Alaska 5W 1870.00 305 -69 322 NQ
09SH08 618547 7486365 NAD 27 Alaska 5W 1873.00 297 -68 332 NQ
09SH09 618547 7486365 NAD 27 Alaska 5W 1873.00 297 -45 207 NQ

 

Total Core Drill Holes Workman’s Bench--50

Total Drill Footage Workman’s Bench—16,400 feet

Note—Four (4) percussion (RC) drill holes completed in 1994 that total 780 feet are not included in the above tabulation

 

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Figures 7.10-to-7.15 depict the vein-fault system on Pringle and Workman’s Benches that has been drilled by the previous owner since 2006, but mainly since 2007. Figure 7.10 is the plane view of the Workman’s bench vein-fault system. Figure 7.12 is a plane view of the Pringle Bench vein-fault system. Much of the data for the cross-sectional profiles on Workman’s Bench was compiled from a series of twelve (12) large plates that depict vertical sections constructed by the company (see Staff, 2008, a-l). Additional vertical profiles were completed by the QP after inspection of the 2009 drill program data. A cross-sectional profile on Pringle Bench was developed by the QP mainly from drill information provided by the previous owner. Three cross sectional profiles, namely A-‘A’, B-‘B’, and C-‘C’, which are shown in Figures 7.11-to-7.13, provide a generalized fence of the Workman’s Bench vein-fault system from southwest to northeast. They reveal that three, sometimes four, mineralized zones designated ‘West’, ‘A’, ‘B’, and ’C’ zones, are more-or-less sub-parallel to each other and dip steeply southeast in the southern part, steeply northwest in the central part, and essentially vertical in the northern part of the drill tested system. The vertical profile designated D-‘D’ on Pringle Bench indicates that the vein-fault system there dips steeply to the northwest. Geologists recognized that distinct near-vertical vein-fault structures could be recognized in drill core and in the underground workings on the basis of both spatial relationships and physical features.

 

·‘A’ zone is the largest and most distinctive of the mineralized structures at Nolan—appearing on both Workman’s and Pringle Benches. It is almost always accompanied by a distinctive lateral slickenside on its footwall and a pervasive quartz-sulfide stock work on it’s hanging wall. This post-mineral movement creates a distinctive granoblastic texture in stibnite. ‘A’ zone varies from less than 1.0 feet to 5.8 feet in true thickness and is thicker when combined with the stock work hanging wall.

 

·‘B’ zone generally occurs 40-50 feet to the southeast of ‘A’ zone and sub-parallels the latter. It is also a vein-fault but does not generally contain slickensides—indicating that movement has not taken place after mineralization. Besides the conspicuous quartz-stibnite mineralization, ‘B’ zone also contains significant siderite gangue—up to 10 percent. ‘B’ zone is somewhat thinner than ‘A’ zone, averaging about 0.85 foot true thickness, but can attain a true thickness of 4.8 feet.

 

·‘West’ zone generally lies 20-30 feet west of ‘A’ Zone but sometimes further. It is similar to ‘B’ zone in that it does not contain slicken-sided features typical of ‘A’ Zone. However, it can contain distinctive stock work quartz-sulfide zones in it’s hanging wall like ‘A’ Zone. ‘West’ zone averages the same thickness as ‘B’ Zone but can be up to 5.0 feet true thickness. It has been recognized on both Workman’s Bench and Pringle Bench.

 

·‘C’ zone is the weakest mineralized Sb-Au vein-fault in the Nolan system and has only been positively identified on Workman’s Bench. Like ‘B’ and ‘West’ zones, no post-mineral slickenside has been observed. It averages only about 0.75 feet in thickness and normally found about 30-40 feet southeast of ‘B’ zone. It is also the weakest mineralization observed on the Workman’s bench and thus far con only be traced for about 275 feet of strike length.

 

Other Sb-Au veinlet zones have been recognized and sampled but cannot be correlated with a specific fault structure of the Nolan system. More work has to be completed to better understand these additional zones.

 

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Two methods were deployed to calculate the estimated true widths of the mineralized vein-faults being evaluated for resources estimates. Firstly, the core-logging geologist estimated true widths by measuring across the extent of the parallel footwall and hanging wall contacts of the mineralized structure being sampled with host metamorphic phyllite. This field estimate is aided by the fact that foliation in the host phyllite, is nearly horizontal. Thus the geologist can check his true width calculations with the angle of the drill hole. During April, June, and September of 2008, the QP looked at all core intervals, underground stations, and selected channel sites in order to check true width intervals. In 2009, the QP examined twelve of the twenty-two core intervals to estimate true width. When true widths were ambiguous in core, standard trigometric calculations were used to calculate the actual dip of the vein(s) in core versus the calculated angle that the vein intersects the zone. Additional descriptive information is described in section 12 of this report. A comparison of drill interval widths versus estimated true width are presented in Appendices I and II.

 

No down-hole orientation surveys were conducted. Oriented drill holes are important to insure that drill azimuths are not off course. The QP judges that the shortcomings of not having oriented core is minimized by: 1) the relatively short drill holes that accessed the mineralized zones; 2) the relative competency of the host rocks; and 3) the near horizontal foliation of the host lithology probably minimize the potential of steeply angled drill holes from bending and diverting off trajectory for any significant amounts. As an example, down hole depths of most mineralized intercepts; i.e., ‘A’ zone, were predicted accurately at the drill site by the geologist before the actual intersection took place. However, as more drill holes explore deeper portions of the system, more holes should be oriented to avoid down-dip inaccuracies.

 

 53 

 

 

 

Figure 7.10 Schematic of Workman’s Bench, illustrating bench configuration, locations of 2007-2009 drill holes, the ‘A’ zone’, ‘West’ zone, ‘B’ zone, and ‘C’ zone, and locations of three cross sectional profiles illustrated in Figures 7.11. 7-12, and 7-13.

 

 54 

 

 

 

 

Figure 7.11 Schematic, cross sectional profile A-A’ the southern portion of Workman’s Bench, illustrating the intersection of the major mineralizing structures currently being assessed—note that the ‘Zones as drawn represent a width of the mineralized structure and not the sampled assay interval, which is generally thinner.

 

 55 

 

 

 

 

Figure 7.12 Schematic, cross sectional profile B-B’ in the central portion of Workman’s Bench, just south of the ‘South Portal’ tunnel, illustrating the intersection of the near-vertical, major mineralizing structures currently being assessed—note that the ‘Zones’ as drawn represent a width of mineralizing structure from inspection of core and not the sampled assay interval, which is generally thinner.

 

 56 

 

 

 

 

Figure 7.13 Schematic, cross sectional profile C-C’ in the northern portion of Workman’s Bench, just north of the ‘North Portal’ tunnel, illustrating the intersection of the near-vertical, major mineralizing structures currently being assessed—note that the ‘Zones’ as drawn represent a width of mineralizing structure from inspection of core and not the sampled assay interval, which is generally thinner.

 

 57 

 

 

 

 

Figure 7.14 Schematic plane view of Pringle Bench, illustrating bench configuration, locations of 2006, 2007 and 2009 drill holes, the ‘A Zone’, ‘West Zone, and other non-designated vein-fault zones; location of cross-sectional profile D-D’ illustrated in Figure 7.15.

 

 58 

 

 

 

 

Figure 7.15 Schematic, cross sectional profile D-D’ (and including RC hole 06SH01) on Pringle Bench, illustrating the intersection of the essentially vertical, major mineralizing structures currently being assessed—namely ‘A’ Zone (red) and West Zone (blue). Note that the ‘A’ and ‘West’ zones as drawn represent a width of mineralizing structure from inspection of core and not the sampled assay interval, which is generally much thinner. From QP files.

 

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8.0SAMPLE PREPARATION, ANALYSES, AND SECURITY

 

8.1Site Sample Preparation Methods and Security

 

The previous firm developing the placer deposits directly supervised the primary collection, sample preparation, and analysis of all placer deposit samples.

 

Gold nuggets within the placer systems can be very large (50% greater than number 4 mesh size) and variably distributed; hence, the requirement for collecting and analyzing large samples. The percussion samples were analyzed in their entirety without sub-sampling to minimize potential bias caused by sub-sampling material with extreme size variation in gold nuggets.

 

Sample grades for the Nolan Creek placer deposits are expressed as oz/yd3 Au. Accurate measurement of the volume of the sample is therefore as critical as accurate recovery and weighing of the contained gold. The volume in the analysis is the in-situ or bank volume of the sample. This is determined using swell factors that have been determined for the deposits. These factors are subject to local variation (e.g., because of higher silt content in the sample) that may cause inaccuracies in the analytical results.

 

Two methods were traditionally used by the previous owner to estimate gold grades in a placer resource. One method is to calculate the amount of gold present in a bank cubic yard or ounces gold/cubic yard. When all of the values are on or near the bedrock-gravel interface, an alternative method of estimating gold quantities in a placer deposit is the amount of gold present on one square foot of surface area on bedrock—known as a bedrock square foot (brsf). Because most of the placer gold in the Nolan Deep Channel and in left limit benches are ‘bedrock placers’, some Silverado geologists expressed gold values in exploration drill programs in ‘brsf’. This value varied with the thickness of auriferous materials both above and below the bedrock-gravel interface. The previous owner established conversion factors for converting ounces gold/brsf to ounces gold/cubic yard, which systematically varied from valley floor and bench deposits. For this summary, the QP expressed all drill hole grade data in ounces gold per cubic yard.

 

Sample recovery calculations have been implemented by the previous owner’s geological staff and described by Flanigan (2003d; 2004). The QP could not verify every sample or the reported results for authenticity, but he is reasonably confident that sampling programs were carried out in a professional manner by competent, qualified individuals.

 

As an example, Table 8.1 summarizes data collected for drill hole intersections for one of the placer target areas: D-3B3 Block.

 

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Table 8.1 Drill hole intersection summary for 3B3-Block

 

Drill hole From To True Thickness Grade
  (ft) (ft) (ft) (oz/cu yd Au)
  NC-3B3 10-1 30 42 12   0.012
  NC 3B3 11-3 85 97 12   0.015
NC-3B3 2-1 105   110   5 0.024
NC-3B3 2-3 75 85 10   0.275
NC-3B3 2-4 70 75 5 0.176
NC 3B3 3-1 55 60 5 0.010
NC 3B3 3-3 90 95 5 0.041
NC 3B3 3-5 125   135   10   0.117
NC 3B3 4-1 105   110   5 0.011
NC 3B3 6-3 50 55 5 0.061
NC 3B3 7-3 55 60 5 0.067
  NC 3B3 9-5B 90 97 7 0.134

 

Four types of samples were collected during previous lode exploration campaigns. Soil samples were taken every 50 ft over established grids. Silverado used hand-held, mechanized augers to collect the samples and sometimes spade shovels. Trench channel samples were taken each 5 ft. When mineralized veins are encountered, a narrower (to a minimum of 6 in) segment was collected. This reflects previous owner’s interest in evaluating the stibnite-bearing veins for selective extraction rather than looking at the deposits as a lower grade bulk tonnage play. All drill core was cut by diamond saws at the mine site. Half of the core was split and bagged for shipment to the selected lab; the other half was kept for further logging activities and reference.

 

The location of trenches and diamond drill holes are described for the lode deposits at Pringle Bench and Workman’s Bench in Chapter 7 of this report. Summaries of the number of RC and diamond core samples are presented in Tables 5.1 and 7.1 of this Technical Report. The locations of channel samples for the Workman’s Bench underground development work deposit are shown in Figure 8.1. Table 8.2 summarizes how sample interval and assay data are presented by the QP from the diamond core drilling, surface-trench, and underground sampling programs.

 

In February 2008, the previous owner completed an underground channel sample program of thin zones of quartz-stibnite mineralization exposed in the workings driven in late 2007. True sample widths across mainly massive stibnite veins ranged from 3 inches-to-11 inches and averaged 6.5 inches. In April 2008, geologists re-entered the underground workings and collected an additional 92 channel samples along 460 ft of underground development.

 

A portable, air-powered chipper (i.e., jackhammer) and chisel were used to extract the samples, mostly 5 ft intervals. The sample channel was first cut with an air-powered rock saw before being extracted with the jackhammer. Sample weight was estimated to be about 15 pounds each, for a total of approximately 600 kg for the 92 samples. The broken sample was collected on a plastic sheet lain on the floor of the drive immediately below the channel. The QP considers that adequate care was taken in the collection of the material in the sampled intervals. In April, 2008, the QP collected 23 independent channel samples from underground workings, using sampling methods similar to those described above.

 

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During September 29-30, 2008, the QP inspected the methodology of the sampling methods and approaches during the processing of core from the 2008 Workman’s Bench exploration program. In contrast to the 2007 exploration drill program on both Pringle and Workman’s Benches, where 5.0 foot lengths of core were systematically assayed along with selected mineralized zones, sample intervals selected during the 2008 drill program on Workman’s Bench were entirely focused on the relatively thin mineralized veins intervals in core. Five-foot intervals in core were not assayed if veinlet mineralization was not recognized. This Previous owner’s decision reflects the desire to focus exclusively on relatively small, high grade, antimony-gold veinlet zones in core. As a result, the total number of assay intervals during the 2008 drill program (627) was only 52 percent of the 2007 drill program total (1,195) despite the fact that drill footage in 2008 (11,597 ft) exceeded the drill footage in 2007 (4,555 ft) by about 160 percent.

 

 

Figure 8.1 Geologists collect channel sample in underground Workmen’s Bench development using horizontal diamond saw cut across mineralized zone; circa April, 2008. From QP files.

 

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Figure 8.2 Location of underground development and channel samples, Workman’s Bench

 

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Table 8.2 Table of selected sample composite, illustrating assay information and true widths of mineralized structures from 2009 Workman’s Bench core drilling program.

 

Drill Hole #
(Assay
Intervals)
Underground,
Surface  or Drill
Core Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description

09SH01

(09SS03)

Drill Core ‘A’ Zone 181.1 182.0 0.90 0.75 <0.01 0.072 7,730 0.25 2.5 Dense quartz vein swarm with trace stibnite and arsenopyrite

09SH01

(09SS04)

Drill Core West Zone 189.9 190.6 0.70 0.58 0.07 0.126 6,680 0.27 8.9 3.25 inch thick vuggy quartz-stibnite vein

09SH02

(09SS019)

Drill Core ‘A’ Zone hanging wall 160.3 162.0 1.70 1.36 5.64 0.035 2,310 0.27 0.9 Quartz carbonate stibnite stockwork

09SH02

(09SS020)

Drill Core ‘A’ Zone 162.0 162.9 0.90 0.72 0.18 0.035 4,560 0.37 15.6 Quartz-stibnite breccias vein; analytical  Sb content lower than visual in core

09SH02

(09SS021)

Drill Core ‘A’ Zone 162.9 164.6 1.70 1.36 3.05 0.042 3,790 0.40 29.1 Two vertical quartz-stibnite veins 0.75 inches thick; 0.30 foot carbonate vein

09SH03

(09SS035

Drill Core ‘A’ Zone hanging wall 164.1 164.6 0.50 0.40 0.35 0.012 NA NA NA 3/8 inch qtz +Sb; 30% stibnite—over-drilled

09SH03

(09SS036)

Drill Core ‘A’ Zone 168.0 168.6 0.60 0.40 0.80 0.019 NA NA NA <1/2 inch qtz-Sb; 80% stibnite-over -drilled

09SH04

(09SS039-040)

Drill Core ‘B’ Zone 145.0 148.7 3.70 2.75 1.57 0.169 5,130 0.90 2.6 Quartz-carbonate veins and quartz-stibnite breccias—contamination from hanging wall

09SH04

(09SS047)

Drill Core ‘A’ Zone 193.6 195.8 2.20 1.62 3.71 0.002 415 0.24 3.4 Abundant quartz carbonate stibnite

09SH04

(09SS048)

Drill Core ‘A’ Zone 195.8 196.3 0.50 0.37 1.65 0.190 2,170 0.37 15.7 Similar to 09SS047 but more arsenopyrite

09SH05

(09SH022)

Drill Core ‘A’ Zone 276.2 276.7 0.50 0.30 47.29 0.217 2.9 1.16 0.7 Hanging wall of massive stibnite vein; arsenopyrite in hanging wall

09SH05

(09SS023)

Drill Core ‘A’ Zone 276.7 278.3 1.60 1.30 69.21 0.251 <0.1 1.63 0.2 Massive stibnite vein (see cover photo)

09SH05

(09SS024)

Drill Core ‘A’ Zone 278.3 278.8

0.50

 

 

0.30 39.53 0.389 17.9 0.79 1.3 Footwall contact zone  

 

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Sample security from both placer and lode sampling programs were maintained by geological contractors. All samples were stored in a secure trailer at Nolan Camp. Individual samples were composited into larger rice bags and sealed with plastic tape. Samples were then stored in a locked trailer at Nolan Camp prior to transport to the ALS Chemex preparation laboratory in Fairbanks, Alaska.

 

8.2Laboratory Sample Preparation Methods and Analytical Procedures

 

Samples from placer deposits were analyzed in their entirety (i.e., no sub-sampling) to minimize potential bias from sub-sampling of material with such a large proportion of gold nuggets. Samples from RC drilling were split with a splitter and surface samples were split by contracted laboratory personnel. The primary sample was processed through a gravity separation technique at the drill rig to separate gold nuggets, finer-grained gold, and heavy minerals from the host gangue material. A systematic procedure was developed by Tricon Mining geological staff for the collection and preparation of percussion drill hole samples. The sample was emitted from the drill and immediately submitted to a drill-mounted cyclone to dissipate the sample velocity, and then passed through a JonesTM splitter. The split sample was then processed through a Denver Gold SaverTM. The oversize discharged to a revolving drum screen to a ‘picking plate’ where +¼ inch nuggets were hand-picked. The – ¼ inch undersize reported to a Teflon lateral action sluice and the resultant heavy mineral concentrate was hand-panned. The gold in the concentrate was then picked with tweezers. The remaining fine heavy concentrate was treated with amalgamation and the resultant gold bead was weighed along with the hand-picked gold with a ChampTM electronic balance.

 

The previous owner conducted volume measurements of samples collected during 2003 and 2004 placer drilling programs. Results of these measurements showed that a 5 ft sample from the Nolan Deep Channel averaged 14.80 gallons, whereas a 5 ft sample from the Mary’s East Bench deposit averaged 19.20 gallons. The Nolan Deep Channel deposits contain significant amounts of silt, sand, and clay, whereas the left limit bench deposits such as those at Mary’s East are much coarser grained. Determination of volumetric measurements results in a more accurate estimate of gold grade in the placer deposit. Hence each placer deposit was volume-characterized by Silverado contractors during exploration.

 

Sample grades for placer deposits are expressed as gold content per bank volume of material where bank volume is the in-situ volume of material. To calculate the bank volume the sample volume must be factored using a predefined swell factor that quantifies how much the volume of the sample increases as a result of extraction. Swell factors for mine operations were estimated by Murton (2004) to be 130%, whereas the calculated swell factor during the 2003-to-2004 rotary drill programs was calculated by Flanigan (2004) to be 117%. The weight of the gold extracted from the sample (the method of recovery which was described previously) is divided by the bank volume of the sample to determine the grade of the sample expressed in oz/cu yd Au.

 

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For lode exploration, diamond core samples were split in half on site by company personnel using a core saw. Half of the core was submitted to external laboratories for analysis and half is retained on site.

 

ALS Chemex of Vancouver, Canada, an ISO 9001:2000 accredited laboratory, analyzed most of the Silverado sample stream from lode-style deposits. Alaska Assay Laboratories LLC of Fairbanks, Alaska, an ANS/ISO/IEC Standard 17035:2005 accredited laboratory were subsequently used by Silverado for analytical work. Both laboratories produced a coarse split from which a finely ground material to 150 mesh is analyzed. The pulverized material and the coarse reject were stored by the laboratories for possible re-analysis. Both laboratories were utilized during the 2008 exploration program. In 2009, analytical services were exclusively provided by ALS Chemex Labs (now ALS USA Inc.).

 

8.3Quality Control and Quality Assurance Programs

 

Quality assurance and quality control (QAQC) was routinely performed by the previous owner’s exploration contractors. During 2008, standards have been obtained from Shea Clark Smith, (Minerals, Exploration, and Environmental Geochemistry) in Reno, Nevada that supplies standards for mining companies. For core intervals intersecting vein zones, two standards and one blank are randomly inserted in batches of twenty (20) sample intervals. One standard contains 0.174 oz/ton gold. The other standard contains 0.261 oz/ton gold. For core penetrating mainly wall rock zones, one standard and one blank were randomly inserted into batches of twenty (20) samples, with the standard used containing 0.174 oz/ton gold. The standards for gold that were inspected by the QP during 2008; all appear to be within a narrow 1.0 percent of the values.

 

During 2009, standards were again obtained from Shea Clark Smith, (Minerals, Exploration, and Environmental Geochemistry) in Reno, Nevada. One mineralized standard contained 6 ppm (0.174 oz/ton) gold while another contained 9 ppm (0.264 oz/ton) gold. A blank consisting of pure quartz was also obtained from Shea Clark Smith. Duplicate samples were prepared by Karl Sharp using known intervals with known assay values. In 2009, standards, blanks, and duplicate samples were inserted into the sample stream every twenty (20) samples in a similar fashion to that developed for the 2008 sample stream.

 

The QP inspected ALS Chemex certified analytical results for the 2008-2009 programs. For example, in 2009, Certificates FA09127826-828; FA0917035-037; FA09091985; FA09085913; and FA09081078 contained 170 assayed samples from all sources. Of these the QP observed the standards and blanks. The low gold standard (6 ppm Au) ranged from 5.91-6.27 and averaged 6.04 ppm Au. The higher standard (9 ppm Au) ranged from 8.61-9.38 and averaged 8.84 ppm Au. The QP judges that the contracted laboratory was performing in a satisfactory manner. Antimony standards were not deployed.

 

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Core recovery was checked in every box coming off the drill rig. The QP witnessed core loggers estimating core recovery during 2007 and 2008. During 2008, Silverado's geological contractors have reported that core recovery and Rock Quality Designators values (RQD) averaged 95 percent, especially after switching from BTW size core to the larger diameter NQ core. During his October 22-23, 2007, June 13-14, 2008, and September 29-30, 2008 site visits, the QP noted that core recovery is consistently very high and averages >90 percent. Lower RQD values occur in mineralized intervals.

 

8.4Qualified Person’s Opinion Regarding Sample Collection and Preparation

 

The QP considers that contractors for the previous owner competently prepared samples analysis and dispatch to external laboratories. The QP observed sampling procedures and QAQC issues at Nolan Creek since about 2003.

 

During the April 20th 2008 inspection of the Workman’s Bench underground workings, the QP suggested some modifications to Silverado contactors during the collection of channel samples underground, which included covering the floor of the drift with a tarp to collect the samples and to prevent contamination and using larger sample bags than were being used.

 

For the 2009 programs, only narrow mineralized zones were selected for assay; therefore, the bulk of the core volume was not submitted for analytical work. The QP suggests that a selected portion of the unanalyzed core should be submitted for: 1) the same analytical methods as used in the mineralized zones in order to estimate the possibility of bulk mineable albeit lower grade zones of mineralization; and 2) acid-base accounting (ABA), in order to better predict the acid generating capacity (AGC) of the site during development and for future permitting requirements.

 

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9.0DATA VERIFICATION

 

9.1Exploration and Mineral Resource Data Verification

 

The QP has verified all exploration and resource data relied upon in this Technical Report.

 

Concerning placer deposits, the QP observed contractors from the previous owner prepare placer samples for separation of placer gold, the subsequent weighing of recovered gold and calculation of gold per unit volume of material. Concentrate splits were stored at Nolan Camp. The QP inspected these records during 2003-to-2004 and also looked at chip trays collected during 2006-to-2007. The QP observed placer exploration conducted by the previous owner’s contractors during underground development of Swede Channel in 2006. The QP is confident that contractors conducted a sound panning program that was directly factored into the development of drifts and crosscuts.

 

Concerning lode deposits, in 2009, the QP observed mineralized sample intervals being prepared for submittal to the ALS Chemex Laboratory in his Fairbanks office complex. All of the core boxes were nailed shut prior to shipment to Fairbanks. According to geologist Karl Sharp (pers. commun., September, 2009), splitting occurred after the core was photographed.

 

Selected field duplicates of sampled intervals, two from underground channels, and one from a trench, were submitted by the QP to an umpire laboratory (Alaska Assay Laboratories LLC) to check analytical results from ALS Chemex. In as much as the samples are collected by different individuals at different times and analyzed by different labs, the QP judges that results from this limited comparison indicate acceptable levels of bias and accuracy for gold and antimony values (Table 9.1).

 

Table 9.1 Duplicate analytical comparisons between QP and contractor samples

 

Sampler Sample # Sb (%) Au (oz/ton) Description
QP 203808 43.64 1.190 Underground sample, Alaska Assay Laboratories
Karsten Eden WBUG5-S2 50.04 1.040 Underground sample, ALS Chemex
QP 203810 41.00 0.696 Underground sample, Alaska Assay Laboratories
Karsten Eden WBUG8-S3 58.02 0.696 Underground sample ALS Chemex
QP 267397 36.51 0.793 Trench Sample, Alaska Assay Laboratories
Silverado Contractor Trench J1 29.30 0.120 Trench Sample, ALS Chemex

 

During 2008, Silverado submitted sixty-one (61) duplicate samples of mineralized core to ALS Chemex, and analyzed them for the Au-GRA21 and Sb-AA65 packages (Table 9.2). The QP did not rigorously compare the data but generally found that, by visual inspection, the assay results for both antimony and gold compared, varied, on average about 2.5 percent.

 

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Table 9.2 List of Duplicate Samples, Workman’s Bench Drilling Program 2008

 

Total: 61 duplicate samples

 

FA08083476

08SS13

08SS14

08SS18

08SS25

 

FA08086192

08SS33

08SS46

08SS51

 

FA08093001

08SS102

08SS106

08SS111

 

FA08093002

08SS119

08SS122

08SS123

08SS124

 

FA08076587

08SS02

08SS09

 

FA08093003

08SS52

08SS67

08SS68

08SS70

 

FA08095943

08SS138

08SS147

08SS149

08SS150

 

FA08117975

08SS235

08SS241

08SS242

 

FA08135958

08SS353

08SS372

 

FA08135959

08SS375

08SS386

 

FA08108707

08SS281

08SS283

08SS287

 

FA08108706

08SS195

08SS196

08SS212

 

FA08108707

08SS215

08SS218

08SS227

 

FA08117976

08SS254

08SS255

08SS192

 

FA08100110

08SS177

08SS182

08SS190

 

FA08100111

08SS158

08SS159

08SS170

 

FA08093000

08SS73

08SS80

 

FA08127442

08SS313

08SS326

 

FA08127448

08SS302

08SS305

 

 

FA08130451

08SS342

08SS351

 

FA08137318

08SS413

08SS426

 

 

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In the vast majority of cases (>97%), the mineralized zones had corresponding elevated values of antimony and frequently (but not always) gold. In four (4) examples (1.9 percent of the total 202 sample assay intervals on Workman’s Bench), where stibnite-quartz and trace visual gold was identified in core, analytical results did not indicate correspondingly high metal values; i.e., sample intervals 08SS216 (DDH 08SH14), 08SS379 (DDH 08SH32), 08SS380 (DDH 08SH32), and 08SS243 (DDH08SH17). In the remaining 98.1 percent of the assay intervals, analytical results seemed to correspond with estimated amounts of mineralization; i.e. estimated content of stibnite and occasional visible gold.

 

9.2Exploration Data Limitations

 

Although drill core intervals can be checked through re-assay activities, placer intervals cannot be checked as the sample material is completely consumed. After interviews with the previous owner’s contractors involved with the earlier placer exploration programs, the QP is satisfied that exploration data acquired during that time is reliable.

 

The QP cannot comment on the validity of sampling and analysis performed prior to the mid-1990s, because he was not present during the exploration programs. The early RC (percussion) drill programs directed at assessing lode mineral potential in the Nolan Creek area are not very well documented. For example, the specific locations of drill hole collars on the Thompson Pup area could not be found.

 

Because of uncertain sampling procedures, and apparent inaccurate orientations of mineralized structures, the QP did not use percussion drilling results to calculate resource estimates.

 

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10.0MINERAL PROCESSING AND METALLURGICAL TESTING

 

10.1 Placer Deposits

 

The previous owner used a number of different plant designs for the processing of gold from placer deposits. During the early 1980s, test pits were completed on Archibald Creek and limited amounts of pay gravels were fed into a trommel screen, and standard sluice box equipped with Hungarian riffles. During the 1990s, recovery technologies improved with the construction of newer washing plant facility. In 2003, a new plant was designed to wash 150 cu yd/h in two 10-hour shifts per day. Improvements to the plant included: 1) Hydraulic riffles to promote an active riffle bed in the sluice box; 2) a one inch screen classifier; 3) A sand screw to the dewatering system; and 4) because of coarse gold, an oversize discharge belt with a nugget alarm system.

 

In 2006, the washing plant was redesigned to improve plant efficiency and improve gold recovery (Figure 10.2 and Figure 10.3). Oversize (greater than 4 in) from the plant is directed to a TechronTM Model #5500 conveyor belt (Techron) oriented at 90° to the length of the washing plant. Any nugget that hits this belt was automatically scanned by the metal detector which is situated at 45 ft along the conveyor belt system. If detected, a trap door was triggered, which dropped the nugget into a wash tub. It is worth noting that the largest gold material recovered during the 2006 washing plant cycle, a flat 9.05 oz gold nugget composed of essentially pure placer gold, escaped the main grizzly and the elongated harp screen but was detected and ‘saved’ by the electronic detector.

 

Undersize material was further sorted by size and gold was recovered using two sluice boxes. All heavy mineral concentrates accumulated in hydraulic nugget traps within the sluice boxes and in the hydraulic riffles ere further processed through a Denver Gold SaverTM. The washing plant had five nugget traps (numbered 1 to 5 on Figure 10.3), 16 ft of hydraulic riffles, and 16 ft of expanded riffles. The plant layout was approximately 110 ft in length and about 65 ft in width.

 

During operations, the QP observed a steady, even feed of pay gravel, efficient removal of oversize materials, and an effective water delivery system. From discussions with company officials and direct inspection by the QP, there was practically no placer gold observed in the middle and lower riffles of both the main and sulfide sluice boxes. Panning of concentrates from these sections failed to yield any significant placer gold (Josh Moore, pers. comm., 2006). Gold recovery was very high and estimated to exceed 95%.

 

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Figure 10.2 Side view of 2007 Nolan washing plant

 

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Figure 10.3 Plan view of 2006 Nolan wash plant

 

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The Silverado gold recovery plant was designed to process 35 yd/hr. From June 27 to July 21, 2006, the plant processed 8,896 cu yd during 278 hours of operation at a rate of 32 cu yd/h. During June 20-to-July 30, 2007, the plant operated for 705 hours and processed 19,615 cu yd, an average rate of 29 cu yd/hr. When fully operational, two day-and-night shifts washed for 11 hours each, with 2 hours each day devoted to plant maintenance.

 

During his June 2026 inspection of the property, the QP searched for but not identify any component of the 2006 washing plant and assumes that it has been dismantled/scrapped and/or moved to another site.

 

10.2 Lode Deposits

 

The previous owner acquired a permit from USBLM to collect and process a maximum 1,000 cu yd of material from the Workman’s Bench lode for metallurgical testing. This large bulk sample could determine further grinding, flotation, and other processing and characteristics of stibnite; however, the bulk sample was never collected.

 

In April 2008, the QP collected a 414 pound bulk sample of semi-massive to massive stibnite, vein quartz, and wall rock gangue all from the defined mineralized ‘A’ zone in the Workman’s Bench underground workings (see Bundtzen, 2008c). The purpose was to determine the mineralogical nature of the antimony mineralization and the source of significant gold values. There is variation in gold content of the stibnite zones even within constrained sample collection areas. The bulk sample was sent to Hazen Research Labs Inc. (Hazen) in Golden, Colorado, USA in to determine the most optimal grind for potential marketing of a stibnite product and identify the mineralogical nature of gold and antimony values. The QP believes that the bulk sample was representative of the ‘A’ mineralized zone on Workman’s Bench.

 

Two reports were produced by Hazen in September: 1) Report #1-Flotation and Gravity Results, Workman’s Bench Stibnite-Gold Deposit, Wiseman District, Alaska; and 2) Report #2-Mineralogical Examination, Workman’s Bench Stibnite-Gold Deposit, Wiseman District (Schultz, 2008 a, b). Both yielded important and relevant information. Hazen tested both gravity and flotation separation technologies, provided for heavy mineral components of the ore, predicted recovery of both stibnite and free gold, and suggested recovery technologies to be used in a future operation.

 

Importantly, in the QP’s opinion, the bulk sample demonstrated that stibnite can be effectively separated from the other heavy mineral components such as gold and arsenopyrite, which report separately in the rougher concentrate table testing (see Figure 10.3). Hence the two economic products of the proposed mineral development, stibnite (antimony) and native gold, can be successfully separated. The stibnite concentrates can be upgraded to market quality and most of the gold (90 percent according to Hazen test results) can be recovered at the mine site, using gravity separation techniques.

 

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Figure 10.3 Tabled Rougher Concentrate from Workman’s Bench Deposit analyzed by Hazen Research Labs, Inc.

 

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Gravity separation using a quarter DeisterTM shaking table produced a second, cleaner gold and arsenopyrite concentrate that assayed 9.4 oz/ton. This test work indicates that coarse gold and coarse stibnite can likely be recovered by gravity separation; however, fine-grained components of both mineralogical products might benefit from flotation (Figure 10.3). Given the tendency for stibnite to ‘slime’, a flotation circuit may be an important prerequisite for a recovery system. Using gravity-only methods would result in a stibnite recovery of approximately 85 percent and gold recovery of about 90 percent.

 

Report #2 (Schultz, 2008b) was designed to learn more about the mineralogical constituents of the bulk sample. In an effort to determine the nature of the gold occurrence, gravity concentration was carried out using heavy liquid, to enable detection and to allow examination of a statistically valid number of gold particles and also to obtain preliminary information on response to gravity separation. A 500-g split from the minus 10-mesh head sample was dry-screened at 35-mesh, and the oversized material was stage-crushed to minus 35-mesh for the gravity separation and the mineralogical work on the separated fractions. For the separation, the minus 35-mesh split was wet-screened at 500 mesh. The minus 35 mesh fraction was separated with heavy liquid using acetylene tetra-bromide at a specific gravity of 2.96 to upgrade the heavy minerals and concentrate the gold (Figure 10.4).

 

 

 

Figure 10.4 Hazen mineralogical separation process flowchart, Workman’s Bench bulk sample.

 

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The heavy liquid sink product contained as predicted, dominantly stibnite, but also other minerals as summarized in Table 10.1 below.

 

Table 10.1. Composition of the Heavy-Liquid Sink Product

 

Constituent

Estimate

Area, %

Stibnite 85
Gangue 10
Pyrite (including marcasite) 3
Arsenopyrite 2
Rutile 1
Chalcopyrite Trace
Covellite Trace
Gold Trace

  

Small gold inclusions (less than 20 µm) in stibnite were observed in the sink product. The identification was confirmed by Electron Microprobe (EMP) analysis, which shows 100 percent Au. Also, fine microcrystalline gold was observed associated with stibnite. The EMP analysis of these particles also showed 100 percent Au. Figure 10.5 illustrates gold inclusions in stibnite.

 

 

 

Figure 10.5 Gold (bright color) in stibnite (gray grain), Workman’s Bench Bulk sample.

 

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A split portion of the concentrate from the shaking table was panned to concentrate the gold even further. Several gold particles were observed ranging in size between 500 µm to about 2 mm. Figure 10.6 illustrates the gold in the shaking table concentrate; note the coarse nature of the gold particles in the sample.

 

 

 

Figure 10.6 Stibnite-gold concentrates from table products from Nolan Bulk Sample—A and B illustrate sampled product variability. Magnification is approximately 25X.

 

10.3 Trace Element Content of Nolan Mineralized Zones

 

Trace element content of the stibnite mineralization in the Nolan Creek area will affect potential marketability. Amalgamet-CanadaTM provides specifications for threshold concentrations of trace elements in stibnite ores, which if exceeded, could result in penalties. The metals of concern are mercury, lead, arsenic, selenium, tellurium, tin, and bismuth. Three of these elements, mercury, lead, and arsenic, are addressed because they are usually the most scrutinized during metallurgical and environmental evaluation of stibnite ores. The previous owner analyzed for all of these elements during their Workman’s bench exploration program. When the QP released his July 29, 2008 NI 43-101 Technical Report (Bundtzen, 2008c) to the previous owner, he indicated that mercury analyses did not exist for 2007 and earlier exploration sampling programs and recommended that mercury analyses be given a priority, given the need to document mercury levels in stibnite-gold mineralization for metallurgical and marketing issues. The previous owner responded to this recommendation and added mercury analyses to the analytical package for the 2008 core drilling campaign on Workman’s Bench.

 

Table 10.2 compares a selected roster of industry standard trace impurities with trace elements identified from the Workman’s Bench and Pringle Bench stibnite-quartz zones. Arsenic, mercury, lead, selenium, bismuth, tellurium, and tin, all pass accepted industrial criteria (maximum quantities) for those metals. The average levels for all of the trace metals in the assay intercepts fall below the Amalgamet-Canada metal specifications, which were used as a standard to test the metallurgical nature of the Workman’s Bench mineralization.

 

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The Silverado data set includes mercury results from 174 mineralized assay intervals used in the resource analysis, or about 80 percent of those used in the mineral resource estimates. For specific clarification, mercury assays exists for all holes drilled in 2008 and 2009, but does not exist for the 2007 drill holes, nor in surface trench samples and underground channel samples collected prior to April, 2008. However, the 2008 and 2009 drill holes and respective intercepts into mineralized zones flank the 2007 drill core intercepts described in the previously released July, 29th, 2008 Technical Report (Bundtzen, 2008 c). The 2008 drill intercepts represent approximately 80 percent of all mineralized intercept data acquired on Workman’s Bench and Pringle Bench. Figure 10.7 illustrates where mercury data is available in mineralized intervals.

 

Mercury values from the 2008 drill-indicated intervals range from nil to a maximum value of 8.12 ppm and average 0.774 ppm mercury (n=134). Twenty-one (or 16 percent) of the intervals contained greater than 1.00 ppm mercury whereas 113 (or 84 percent) of the intervals contained less than 1.00 ppm mercury. The QP inspected the 2009 drill core analytical data from 43 intercepted mineralized zones. Mercury values from the 2009 intercepts ranged from 0.22 ppm-to-15.70 ppm and averaged 1.45 ppm. None of the mercury values exceed the threshold of concern (see Table 10.2).

 

Lead and arsenic values exist for all 2007, 2008 and 2009 drill core intervals, but not trench or chip samples. For 2007-2008, about 87 percent of the mineralized intercepts have Pb and As control. All 2009 vein-fault assay intervals have arsenic and lead assay control. For 199, or 91 percent of the analyses, arsenic levels average 2,379 ppm (0.224 percent) and lead values are very low, averaging just 17.1 ppm. The highest lead value was 275 ppm, indicating that lead only exists in very small amounts in the mineralized rock.

 

However, for 15 sample intervals or 8 percent of the sample population, arsenic values are >1.00 percent. Arsenic levels in zones of greater than 10 percent antimony average about 0.18 percent. For 2009, arsenic values ranged from 2.9 ppm to 9,380 ppm and averaged 2,312 ppm. Lead values ranged from 0.2 ppm to 14.5 ppm and averaged 6.55 ppm. The QP is confident that the mercury, arsenic, and lead values encountered in the core drilling program provides adequate information for the metallurgical testing summarized in this Technical Report.

 

The maximum arsenic value in these higher-grade Sb intervals is 0.41 percent in sample interval #203789, which contains 22.48 percent Sb (sample control #61, Appendix I). During consideration of milling technologies, future work should focus on the most effective removal of arsenopyrite from the stibnite concentrate prior to marketing. The metallurgical data shown by the Hazen Research on the Bulk Sample (see Figure 10.1) shows that arsenopyrite and gold report to separate mill circuits during gravity processing.

 

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Figure 10.7 Drill plan showing the locations of mercury analyses on 2008 core drilling program on Workman’s Bench

 

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Table 10.2 Selected stibnite quality comparative characteristics from Amalgamet-Canada.

 

Amalgamet-Canada Threshold of Average Content Workman’s bench Mineralized
Concern Specifications for Stibnite Ores Zones
   
<0.50 % Pb+As 0.224 % arsenic for 91 percent of intervals; and 17.1 ppm lead
   
Trace Selenium (<30 ppm) 5.0 ppm selenium
   
Trace tellurium (<10 ppm) <2.0 ppm tellurium
   
Trace tin (<10 ppm) <4.0 ppm tin
   
Trace bismuth (<10 ppm) <3.0 ppm bismuth
   
Trace mercury (<20 ppm) 0.90 ppm mercury (maximum value is 15.70 ppm)(1)
   

 

(1)  mercury data available for 177 mineralized intervals from 2008 and 2009 core drilling programs

 

10.4 Recovery Estimates

 

In Report #1 (Schultz, 2008a), rod mill grinding followed by two rougher stages yielded a gold recovery of 98% and an antimony recovery of nearly 100%, which indicates flotation may be a viable process for recovering gold and antimony at Workman’s Bench. The gold and antimony grades from the sample were 0.546 oz/ton (as stated, 18.7 g/t) and 36.7 percent, respectively, which compare favorably to the average measured and indicated resource grade estimates (Chapter 11).

 

10.5 Qualified Person’s Opinion

 

Metallurgical Results of the Bulk Sample processed by Hazen Research suggest that coarse gold and coarse stibnite can likely be recovered by gravity separation; however, fine grained components of both mineralogical products might benefit from flotation (Figure 10.3). Given the tendency for stibnite to ‘slime’, a flotation circuit may be an important prerequisite for a recovery system. However, using gravity-only methods could result in high stibnite and gold recoveries.

 

In the QP’s judgment, the Hazen bulk sample work, coupled with his own mineralogical work derived from his underground sampling, provide enough information to initiate design and operations for recovery of gold and stibnite.

 

Lead values ranged from 0.2 ppm to 14.5 ppm and averaged 6.55 ppm. The QP is confident that the mercury, arsenic, and lead values encountered in the core drilling program provides adequate information reducing their effect on concentrate quality. However, because arsenic is present in significant amounts because it is part of the gold-antimony mineral system, it’s presence has to be taken into account. During design of a mill and marketing of a sulfide concentrate. The QP reviewed tin, bismuth, selenium, and tellurium values. For the majority of the mineralized zones, values were below limits of detection as indicated in Table 10.2.

 

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11.0MINERAL RESOURCE ESTIMATES

 

11.1Disclosure

 

The mineral resource estimates reported in this section were prepared by Mr. Thomas K. Bundtzen, President of Pacific Rim Geological Consulting Inc. and AIPG Certified Professional Geologist. Mr. Bundtzen is the QP and is independent of GML/USAC. In accordance with CIM Definition Standards (Staff, 2003, 2004, 2005a, b), a mineral resource may be sub-divided into Inferred, Indicated, and Measured categories. “Measured and Indicated Mineral Resources” are that part of a mineral resource for which quantity and grade can be estimated with a level of confidence sufficient to allow the application of technical and economic parameters to support mine planning and evaluation of the economic viability of the deposit. An “Inferred mineral resource” is that part of a mineral resource for which quantity and grade can be estimated on the basis of geological evidence and limited sampling and reasonably assumed, but not verified, geological and grade continuity (Staff, 2004). The QP judges that the mineral resource estimates presented in this Section are representative of the mineralized zones that have been explored by the previous owner.

 

The QP is unaware of any issues that materially affect the mineral resource in a detrimental sense, and has checked agency records, company correspondence with regulatory agencies and reviewed regulatory agency websites. In addition:

 

·To the best of the QP’s knowledge, there are no known material exploration, legal, marketing, socio-economic, political, title, permitting, or taxation issues;
·To the best of the QP’s knowledge, apart from the usual environmental aspects that require consideration as part of any mineral exploration project, there are no known material specific environmental issues; and
·To the best of the QP’s knowledge, there are no known material mining, metallurgical, or infrastructure issues other than those discussed in this Technical Report.

 

11.2Key Assumptions, Parameters and Methods

 

Firstly, according to CIM standards, “Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability”. The writer (QP) judges that the gold-antimony Nolan Deposits contain Measured, Indicated and Inferred Resources of gold and antimony. The placer gold deposits contain both Indicated and Inferred Mineral Resources of placer gold.

 

The QP estimated mineral resources using the following steps:

 

·Personal inspection of both and the Nolan Creek placer-gold and Workman’s Bench lode gold-antimony properties during 1999-2004, and 2007-to-2009 respectively.
·Database compilation and data validation by the QP.
·Geological interpretation and modeling by the QP.
·Compositing assay intervals to a common length.
·Determination of average material density for both lode and placer properties by the QP.

 

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·Analysis of grade variability by the QP.
·Polygonal estimation of grade by compositing of sample assay information taken within designated widths and lengths of mineralized zones by the QP.
·Assignment of appropriate cut-off grades, the lowest grade that the QP judges can be mined economically.
·Classification of confidence with respect to CIM (2005) guidelines by the QP; and.
·Mineral resource tabulation and validation of the resource estimates by the QP.

 

Because of the well-designed drill data set available for the Nolan Creek Placer deposits, the writer has produced an Indicated Resource estimate for placer gold, using accepted polygonal weighting methods that have been deployed for heavy mineral placer deposits worldwide. Doheny (1941, 1942a, b) describes polygonal resource estimation methodology while assessing large, low grade placer gold resources for both the United Stated Smelting, Refining, and Mining (USSR&M)

 

Company in the Nome and Fairbanks districts of Alaska and the Yukon Consolidated Gold Corporation (YCGC) operations in the Klondike district in Yukon, Canada. Daily 1962) advocated use of polygonal weighting methods for globally distributed large heavy mineral placers. Peters (1978) describes five geometric patterns used in polymetallic lode mineral resource calculations, including the triangular block method used in this analysis.

 

A Society of Economic Geologists (SEG) publication summarizes polygonal methods of resource estimation in Ore Reserve Estimates in the Real World (Stone and others,1998). While describing triangular estimation techniques, these authors state:

 

“Polygons can be constructed with the drill holes at the corners of the polygons. Such polygons consist of triangles; the solid lines define triangles with a drill hole at each apex…the area is easily calculated but the thickness and grade are calculated by averaging the intercepts in the bounding drill holes”.

 

The triangular method works best when the majority of samples exceed cut-off grades in large, planar-shaped deposits such those that frequently occur in placer fields, including in the Nolan Creek Deposits or thin, linear vein-like lode deposits. This is also the methodology selected by the writer for estimating Measured, Indicated and Inferred lode Mineral Resources at Nolan Creek.

 

Although this Technical Report does not estimate Mineral Reserves and instead only reports Mineral Resources, Section 229.1302(d)(2) of SK 1300 states that an assessment of resources as presented in a Technical Report of this nature must estimate a cut-off grade from ‘assumed’ unit costs and estimated commodity prices disclose the prices used and reasons for choosing cut off grades. The QP uses a cutoff grade of 0.06 oz/yd gold for indicated gold resources found in drill-tested, deeply buried placer deposits. Using a price estimate of $2,500/ounce, this cutoff grade reflects the greatly added costs of mine extraction encountered during the mining of frozen, deeply buried mineral resources which require underground mine technologies for extraction of the gold.

 

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Consistent with past Technical Reports produced by the QP for the Nolan Sb-Au lodes, a cut-off grade of 4.0 percent ‘equivalent’ antimony was used, reflecting the dominance of Sb in the resource estimates. A subsidiary factor corroborated the economic cutoff grade of 4.0 percent equivalent antimony. This includes gold values. The QP understands that commodity prices (Sb and Au) have risen since release of previous Technical Reports. He has assumed a price of $12 US/pound for refined antimony in this study and $2,500.00/oz gold Upon inspecting core and assay interval information from both Pringle Bench and Workman’s Bench, the QP also observed that a 4 percent antimony value (6-7 percent stibnite) generally reflects sharp metallogenic boundaries of the mineralized veins being investigated (see Figure 11.4-B). The drop-off at approximately 4.0 percent antimony equivalent is apparent in most assay intervals (for example, see Sub-Chapter 11.7—Mineral Resource Uncertainties (page 115-119) and Appendices I and II of this Technical Report.

 

11.3 Mineral Resource Estimates

 

Concerning placer deposits, the QP estimated mineral resources for a number of deposits at Nolan Creek Figure (11.1). The QP considered the resource summaries of Armstrong et al 1994) and Childress (1995) during his review of placer resources. The QP considers that the two deposits, D-Block #1 and 3B3 Block contain Indicated Resources of gold and the remaining five deposits contain only Inferred placer gold resources (D-Block #2 Below Discovery, Wooll Bench, Treasure Chest South, Smith Creek, and Slisco Bench).

 

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Figure 11.1 Location of placer-style gold mineral resource estimates, Nolan Creek.

 

Only the Indicated placer gold resources in D-Block #1 and 3B3 Block are presented in this Technical Report. Details for the inferred resources estimates can be found in Bundtzen (2008c).

 

The QP estimated indicated placer gold resources in the Nolan area using a polygonal weighting method (i.e., Triangular Diagram Method) as advocated by Doheny (1941; 1942 a, b), Daily (1962), Peters (1978), and Cook (1983). For this method, data from three drill holes are used to estimate the volume and grade for a triangular area of influence. By linking each triangular area, the method provides a model of the placer mineral deposit in terms of shape, grade, and depth.

 

The accuracy of the resource estimate is influenced by the density of drill holes in the deposit, the regularity of the drilling pattern (i.e., whether the drilling pattern is isotropic, anisotropic, or erratic in distribution), the volume of material estimated by each drill hole, and the inherent variability of gold distribution in the deposit. Nugget effect is one of the main concerns when estimating resources for this type of deposit. Gold nuggets as large as 41.5 oz have been recovered from Silverado operations at Nolan Creek, and more than 25 nuggets have exceeded 10 oz. Such coarse

 

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gold concentrations are not uniformly distributed in paystreaks, which is a source of error in placer resource estimation. Other variables that may influence the mineral resource estimation include the proposed mining method, recovery technologies, clay and boulder content of the paystreak, and accuracy of drill station locations.

 

Reconciliations of estimated metal content versus actual (mined) metal content for two selected Silverado’s placer deposits are presented in Table 11.1. These reconciliations indicate that the polygonal approach to estimation gives favorable results over the life of mining operations. Polygonal estimations on average predict 6% less metal than actual production while kriging methods significantly underestimate the global metal content of the resources. During the 37-year history (1928 to 1965) of the United States Smelting Refining and Manufacturing Company (USSR&M) in the Fairbanks district, historically Alaska’s largest corporate producer of placer gold, about 4.1 Moz of placer gold were recovered with bucketline dredging technologies in the Fairbanks district. All deposits were defined with drilling lines spaced about 150 ft apart. Actual gold recovery exceeded the estimates by approximately 8.5% (Boswell, 1979, p. 15).

 

Table 11.1 Reconciliation of actual versus estimated gold content for two selected placer deposits, Nolan Creek

 

Location Estimation Drill hole Drilling Drilling Estimated Mined Difference
  method count density pattern metal metal (%)
      (sq ft/hole) description (oz) (oz)  
Swede polygonal 23 403 anisotropic 2,200 2,305 4.7
Underground              
Ogden-Eureka polygonal 53 5,572 isotropic 7,509 8,127 7.6

 

D-Block #1 Below Discovery is defined by 50 rotary drill holes, 23 of which intercept fluvial sediments with significant gold values. Included in the resource definition are 8 drill holes completed during 1994 and 15 drill holes completed in December, 2003. Drill hole distribution is anisotropic although most of the drilling was aligned along northwest lines perpendicular to the strike of the interpreted channel. Drilling density averages 2,055 cu yd/drill hole. Depth to bedrock is quite variable in D-Block #1 Below Discovery and ranges from 10 ft to 75 ft but generally averages about 35 ft. Geological drill hole logs indicate that the gold concentrations are nearly always on or near the bedrock surface and average about 7.25 ft thick. Twenty-three polygons define an indicated resource of 4,320 oz Au in 47,278 cu yd of gravel, at an average grade of 0.091 oz/cu yd Au, (Table 11.2).

 

South of D-Block #1 Below Discovery, along the same buried channel trend, twelve drill holes in four lines define the 3B3-Block deposit. This placer deposit is also on or near bedrock but is much deeper than D-Block #1, ranging from 42 ft to 135 ft and averaging about 75 ft deep. Twelve polygons define a resource of 19,525 cu yd of gravel averaging 0.099 oz/cu yd Au (Table 11.3). The drilling pattern defining the 3B3-block deposit is anisotropic with 1,627 cu yd/ drill hole.

 

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Tables 11.2 D Block #1 Below Discovery and 3B3 Block indicated resource estimates.

 

Polygon Area Average Volume Average grade Metal
  (sq ft) thickness
(ft)
(bank cu yd) (oz /cu yd Au) (oz Au)
A1 6,000 8.3 1,845 0.086 159
A2 7,200 10.0 2,667 0.077 205
A3 5,700 16.6 3,504 0.072 252
A4 8,550 8.3 2,628 0.008 21
A5 5,700 16.6 3,504 0.114 400
B1 6,400 6.6 1,564 0.253 396
B2 8,500 10.0 3,148 0.203 639
B3 7,975 5.0 1,477 0.197 291
B4 7,890 8.3 2,425 0.015 36
B5 6,500 8.3 1,998 0.040 80
C1 7,400 6.6 1,809 0.315 570
C2 7,100 6.6 1,736 0.207 359
C3 7,650 5.0 1,417 0.202 286
C4 4,760 5.0 881 0.022 19
C5 6,800 5.0 1,259 0.043 54
D1 5,600 6.6 1,396 0.025 29
D2 5,350 6.6 1,307 0.023 30
D3 6,500 6.6 1,589 0.021 33
D4 5,240 5.0 970 0.016 16
E1 1,900 6.6 464 0.020 9
E2 2,900 6.6 709 0.023 16
E3 5,000 6.6 1,222 0.024 29
E4 3,900 5.0 722 0.019 14
F1 7,000 5.0 1,296 0.020 26
F2 9,900 5.0 1,833 0.067 123
F3 10,200 5.0 1,889 0.060 113
F4 10,900 5.0 2,018 0.057 115
           
Total 178,515 7.25 47,277 0.091 4,320
Polygon Area Average Volume Average grade Metal
  (sq ft) thickness (bank cu yd) (oz /cu yd Au) (oz Au)
A1 5,400 9.0 1,800 0.103 186
A2 8,400 9.4 2,924 0.101 295
A3 7,600 9.0 2,530 0.096 243
B1 6,900 5.0 1,275 0.050 64
B2 5,400 8.3 1,660 0.113 188
B3 5,500 8.3 1,690 0.144 243
B4 5,250 6.6 1,280 0.284 363
C1 7,900 5.0 1,464 0.027 39
C2 7,600 6.6 1,857 0.037 69
C3 4,500 5.0 833 0.056 47
C4 5,650 5.0 1,046 0.080 84
C5 6,300 5.0 1,166 0.097 113
Total 76,400 6.9 19,525 0.099 1,934

 

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Figure 11.2 Polygon layout for D-Block #1 and 3B3-Block indicated resources of placer gold; 39 polygons were used in calculating the resource estimates.

 

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Table 11.3 summarizes the Indicated Mineral Resource estimates for the D-Block #1 and 3BE Blocks placer gold deposits in Nolan Creek valley.

 

Table 11.3 Placer deposit Indicated Mineral Resource, USAC Nolan Creek placer claims

 

Resource Cut-off grade Quantity Grade Metal
category (oz/cu yd Au) (cu yd) (oz/cu yd Au) (oz Au)
Indicated 0.06 66,800 0.095 6,250

 

Notes:

 

−The effective date of these resources was July 2, 2008; amended October, 2026
−Rounding may result in some discrepancies.
−No processing recovery factors have been applied to these resource figures.
−The industry standard unit of quantity for Alaskan placer deposit is cubic yards. The weight of a cubic yard varies, but averages about 2.4 short tons.

 

The triangular block method (a.k.a. polygonal method) was selected by the QP to calculate Measured, Indicated, and Inferred lode antimony-gold mineral resources in the Nolan Creek area. Peters (1978) describes five (5) geometric polygonal patterns for ore reserve calculations as: 1) uniform spacing; 2) perpendicular at midpoints between holes; 3) triangular blocks (the method used in this analysis); 4) random spacing; and 5) angular bisectors. He suggests that geometric pattern methods are best used for tabular deposits such as massive sulfide bodies and for veins. A sixth method known as the ‘cross sectional method’ is used when there is significant variance in deposit thicknesses.

 

There are several important considerations for the comparison of indicated versus inferred resources: 1) The assessment of the areas of influence between core drill or other control points or ‘area of influence’; 2) the comparison of tonnage present in each polygonal block; 3) drill pattern; i.e., whether it is isotropic, anisotropic, or erratic, and 4) factoring in other features such as known vein length and depth continuity (or lack of), and assay grade variance. Table 11.4 summarizes the resource classification criteria adapted by the QP for the Nolan lode evaluation.

 

Table 11.4 Characteristics of Measured/Indicated resource- versus Inferred resource, Nolan Creek antimony-gold deposits, Alaska

 

Locations Resource Category Drill # Total Tons/ Comments
    Pattern Polygons Tons Polygon  
Workman’s Bench Measured and Mainly 123 53,616 442 Vein-faults exhibit
  Indicated Resources isotropic       predictable widths
            and orientations
             
Workman’s Bench Inferred Resources Erratic to 62 32,459 523 Some interval
and Pringle Bench   anisotropic       variances- both
            laterally and at
            depth
             

 

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Vein-fault continuity is a significant consideration in assessing the classification of polygons. ‘A’ zone has been identified for a strike length of 3,500 feet, based on 72 core drill holes and extended surface sampling control. The West and ‘B’ zones have less strike length but can be verified for significant strike length, based on test drilling and surface control. The more consistent the vein-fault, the more predictable is the presence of mineralization. Finally, drill pattern is an important criteria at Nolan Creek. Even though the relative density of polygons at Pringle Bench is more-or-less comparable with indicated resources on Workman’s Bench, the drill pattern at Pringle bench has a generally erratic distribution. Because of this, the QP decided that all resources on Pringle Bench could only be regarded as inferred.

 

For average grades of antimony and gold, each channel interval was weighted by an interval of influence as well as a width in order to obtain an area of influence. It is important that metal grades not be overstated in a mineral deposit—thus exaggerating the amount of resources in question. It is also important to note that the Nolan Creek lodes that have been drill-tested drills are primarily antimony deposits. Based on past and present prices, the antimony content of the vein-faults constitute about 70-75% of the value. Gold is a byproduct, albeit a significant credit. In order to better understand antimony and gold distribution in the vein-faults, the QP constructed two (2) histograms that depict: 1) gold grades on Workman’s Bench and Pringle; and 2) antimony grades on Workman’s Bench and Pringle Bench (Figure 11.3). Some 247 assay intervals are used in the analysis. For gold, the trends start off with a quick peak between 0.01 and 0.06 oz/ton, then level off and then break away at a steep 70 degree slope and then level off again at about 1.1 oz/ton. There are six (6) assay values on Workman’s Bench that exceed 1.0 oz/ton and three (3) on Pringle bench that exceed 1.0 oz/ton.

 

The antimony histograms for Pringle and Workman’s Bench exhibit a different pattern to the gold grade data (Figure 11.4-A). For both Pringle and Workman’s Bench antimony values peak early at about 5.0 percent, drop to a relatively flat trend beginning at about 10-15% antimony; and then continues on a horizontal trend all the way to the maximum 65+% antimony values. Sixty-one (61) or 25 percent of the sample population exceeds 30 percent antimony. The QP assigned a Sb cut-off grade at 4.0 percent based on assay distribution graphically shown in Figure 11.4-A as well as past-to-current price estimates for high grade stibnite concentrates.

 

In order to understand why the gold and antimony histograms differ, correlation coefficients were calculated for the 2008 Workman’s Bench data, the largest data set (Figures 11.4 a, b). The correlation coefficient between gold and antimony is 0.58. The correlation coefficient between gold and arsenic is 0.87. It is known from inspection of core, from the mapping of underground workings, from ore microscopy studies, and finally bench testing (Section 10 of this Report) that gold is found in quartz-carbonate-gold-arsenopyrite veinlets that frequently form selvages around the main stibnite structures. Gold is also found as grains in the stibnite itself. The Hazen Research bench tests show that the gold grains are liberated upon grinding of the stibnite and the arsenopyrite and gold grains bleed off in a separate train during Wiffley table testing.

 

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Figure 11.3, a, b Histogram plots of antimony (on left) and gold (on right) distribution from 247 assay intervals, Pringle Bench and Workman’s Bench vein-faults, Nolan Creek, Alaska. Note that the data points are derived from submitted assay intervals and are not necessarily total true width estimates for vein-faults.

 

 

 

Figures 11.4 a, b Correlation coefficients for assay intervals from Workman’s Bench (n=118); a—coefficient of 0.87 for gold versus arsenic; and b—coefficient of 0.58 for gold versus antimony.

 

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Table 11.5 shows that the majority of the nine high-grade gold assay intervals from Workman’s Bench and Pringle Bench are diluted when added to other assayed samples within a true and weighted vein-fault width.

 

Table 11.5 Analysis of high grade, assayed gold intervals (>1.0 oz/ton), Workman’s Bench and Pringle Bench antimony-gold deposits.

 

Deposit Drill Hole/ Intercept True Gold Antimony Comments
  sample   Thickness Grade Grade  
  number   (feet) (oz/ton (%)  
Workman’s 08SH32 205.7- 0.74 1.13 38.74 Part of a wider zone with two composites
Bench ‘B’ Zone (08SS393) 206.6       that contain an average true thickness of
            2.9 feet; weighted average grade of
            composite sample interval is 0.18 oz/ton
            Au
Workman’s Channel 172.0- 1.50 1.19 43.63 Measured 1.50 foot true thickness width
Bench ‘A’ Zone 203808 173.5       underground
  underground          
Workman’s WBUG5 S2 199.8- 0.50 1.04 50.04 Thin, 0.4 foot wide massive stibnite, vein
Bench ‘B’ Zone (underground) 200.2       core; part of 3 composited samples that
  taped       average 0.37 oz/ton Au
    from        
    control        
    point        
Workman’s 08SH018 315.0- 1.15 2.88 27.65 Part of high-grade stibnite zone with
Bench ‘A’ Zone (08SS255) 316.8       visible gold when composited with sample
            08SS254, yields an average gold grade of
            1.57 oz/ton.
Workman’s 07SH14 209.0- 0.20 1.61 51.42 Part of a composited interval that has a
Bench ‘A’ Zone (267394) 209.2       true thickness of 0.85 feet,
            Weighted average grade of 0.64 oz/ton Au
Workman’s 08SH25 374.8- 1.41 2.86 43.20 1.70 foot intercept has true thickness of
Bench ‘A’ Zone (08SS351) 376.5       11.0 inches; composited with two other
            samples within ‘A’ zone interval that
            averages 1.07 oz/ton Au in a 2.9 foot true
            vein-fault thickness.
Pringle Bench 09SH18 74.5-75.5 0.66 5.72 37.73 High grade Au zone has true width of 0.66
‘A’ Zone (09SS109)         feet. Combined with true vein width of
            2.00 ft for ‘A’ zone., which yields a
            weighted average of 1.95 oz/ton Au
Pringle Bench 09SH20 205.5- 0.66 1.69 2.74 Quartz-carbonate stibnite vein zone with
‘A’ Zone (09SS148) 206.5       visible gold
             
Pringle Bench Channel 33.0-49.2 16.2 5.56 8.74 Wide “A’ zone channel
‘A’ Zone Sample in          
  Trench H;          
  (07H03)          

 

The QP has decided that a very high-grade gold value should be capped at 1.9 ounces/ton gold for the grade of a true sample width interval. This relatively high level does allow for the occurrence of high-grade zones if their spatial relationship shows a pattern. The high-grade zones in both drill holes 09SH 18, 08SH18, 09HS18, and 07H03 were capped at 1.9 oz/ton gold. The QP believes that the histogram of gold values shown ai Figure 11.3-B supports that decision.

 

The data set acquired by the previous owners of the federal claims on Nolan Project is comprehensive. Samples have been professionally collected, assayed and archived by contractors

 

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and employees. The QP believes the large sample suite to be accurate and can be relied upon. However, some selected information was scrutinized by the QP. In addition to the rejection of the high-grade gold sample interval on Pringle Bench previously described, a few sample intervals were disregarded in the resource calculations because their values were not believed to be representative. Examples are cited below. Sample control #84-86 samples at Workman’s bench were reported to be true thickness estimates of 8.2 feet each of disseminated to massive stibnite-bearing zones that assayed up to 30.30 % antimony and 0.22 oz/ton gold. But upon inspection of the zones in the field by the QP, it was determined that samples may have been testing a northwest-bearing shear along it’s rake, and not perpendicular to the high-angle northeast structures being evaluated. Additionally, no thicknesses reported on the surface have so far been recognized in drill holes, or in sample control directly underneath in the underground workings. This data was not used in resource calculations. The U.S. Bureau of Land Management (USBLM) reported results of 13 samples at surface exposures on Workman’s bench that assayed up to 61.7% antimony and 0.476 oz/ton gold. The QP attempted to see if these data points could be used but concluded they were just grab samples—not representative across true widths of mineralization. He did not use this data in resource calculations.

 

Owing to the oxidized and locally slumped nature of surface exposures, some trench information on Pringle Bench was scrutinized. One channel in Trench I included a 6.5 foot true thickness of ‘B’ Zone that averaged 30.35% Sb. A similar high value over a thick ‘A’ zone occurs in Trench M. After the QP inspected these zones in the field, he was unsure as to whether the assays could be used in the resource analysis. The West zone that was sampled in Trench M was inspected by the QP and assay and width information from the fresh exposure there appeared to be valid; hence that data was used.

 

In order to complete the polygonal resource calculations, the QP rigorously calculated tonnage factors for the inferred and indicated resources presented in this Technical Report. Thrush et al (1968) specifies specific gravity estimates for pure stibnite (4.52), for quartz gangue (2.70), and for pelitic schist (2.66). A tonnage factor was calculated using the equation provided by Peters (1978). Pure stibnite would have a tonnage factor of about 7.1 cu ft/ton. The tonnage factor was individually calculated for each polygon using the equation of Peters (1978). The equation is: Tonnage Factor=2000/specific gravity X 62.5=cubic feet per ton. Pure stibnite is 71.5 percent antimony. As an example for polygon # 5, which contains 29.6 percent antimony (41.4 percent stibnite), the average calculated specific gravity of the polygonal zone is 3.89. The tonnage factor for this polygon is 2000/3.89X62.5=8.20 cubic feet/ton. For a lower grade zone; i.e., polygon 29, which assays 18.19 percent antimony (25.4 percent stibnite), then the specific gravity of the polygon is 3.82. The tonnage factor is 2000/3.82X62.5=8.39 cubic feet/ton. The QP calculated the tonnage factor for each polygon and arrived at an average tonnage factor of 8.21 cubic feet/ton— rounded to 8.20 cubic feet/ton for the Technical Report analysis.

 

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Two control samples of mineralized vein intervals and one sample of wall rock from Workman’s bench underwent specific gravity (SG) and absorption measurements (ASTM C 127) at the laboratory of Shannon and Wilson Inc. in Fairbanks. Table 11.6 summarizes the results and compares them to SG calculated using methods described above. High grade nearly massive stibnite that assayed 56.88 percent Sb from station #203804 yielded a SG of 4.38 and a tonnage factor of 7.31. In contrast, much lower grade material from the bulk sample that assayed 9.10 percent Sb, yielded an SG of 3.45, and a tonnage factor of 9.27. The average tonnage factor for the high-and low-grade stibnite zones, which have an average assay of 33.04 percent Sb, is 8.29. These limited physical SG measurements are consistent with SG values calculated from assay data and inferred SG of country rock material used in the QP’s resource calculations.

 

Table 11.6 Specific gravity (SG) measurements (ASTM C 127) from selected mineralized intervals, Workman’s Bench; laboratory analyses by Shannon and Wilson, Inc., Fairbanks

 

Sample # Sample Description Measured Absorption Tonnage Antimony Calculated Difference
    Specific (%) Factor (%) tonnage between SG
    gravity     Appendix I factor Values (%)
    (SG)          
203804 Massive stibnite 4.38 0.33 7.31 56.88 7.34 0.40
  interval in ‘A’ Zone            
HR51856-1 Bulk sample stibnite 3.45 1.50 9.27 9.20 9.31 0.43
  gravity concentrate            
HR51856-2 Wall Rock Gangue 3.04 0.33 10.50 NA NA NA
  from Hanging Wall,            
  A Zone            

 

Consistent with past Technical Reports produced by the QP for the Nolan Sb-Au lodes, a cut-off grade of 4.0 percent ‘equivalent’ antimony was used, reflecting the dominance of Sb in the resource values.

 

11.4 Measured Lode Antimony-Gold Resource at Nolan Creek

 

This Technical Report describes the Measured Resource Estimate as summarized in Tables 11.7; 11.8. No new information concerning the measured resources has been generated for the Nolan Creek project since the release of those estimates on July, 2011; which were filed on SEDAR (www.sedarplus.ca.com). Graphic depictions of resource blocks and data tables that define the probable reserve are summarized in Figures 11.6-11.26 and Tables 11.9-to-11.28.

 

Table 11.7 Measured lode mineral resource, Workman’s Bench Nolan Creek area

 

Resource Cut-off Quantity Grade Metal Grade Metal
Category grade (ton) (% Sb) (ton Sb) (oz/ton Au) (oz Au)
  (% Sb)          
Measured 4.0 42,412 28.00 11,880 0.408 17,300

 

Notes:

 

  The effective date of this measured resource is July, 2011; amended September 2026
  Assumed processing recoveries for the base case are 90% gold recovery and 85% antimony recovery. The unit ton refers to short tons.
  Rounding may result in some discrepancies.

 

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Figure 11.5 Surface view of Workman’s bench mineralized zones, showing locations of underground workings, 2007-2008 drill hole control (in black), 2009 drill hole control (in blue), and interpreted extensions and fault offsets of A, B, C and West Zones.

 

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Figure 11.6 Measured resource polygons for ‘A’ Zone, Workman’s bench, Nolan Creek Area

 

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Table 11.8 Polygonal Measured Resource block summary for ‘A’ Zone, Workman’s Bench

 

Polygon Tons Antimony (%) Antimony (tons) Gold (oz/ton) Gold (ounces)
1 365 4.70 17.2 0.056 20.4
2 337 4.20 14.1 0.120 40.4
3 445 22.80 101.5 1.090 485.1
4 484 22.85 110.5 1.070 517.8
5 602 29.60 178.2 1.120 674.2
6 508 23.09 116.8 0.056 28.4
7 390 50.89 198.4 1.109 432.2
8 379 31.40 119.0 1.115 422.6
9 305 28.03 85.4 0.987 301.0
10 195 13.47 26.2 0.146 28.5
11 950 22.36 212.4 0.193 183.4
12 175 27.94 48.9 1.097 191.9
13 125 10.66 13.3 0.970 121.3
14 105 16.17 33.9 0.102 10.7
15 535 19.73 105.5 0.300 160.6
16 335 31.68 106.1 0.307 102.8
17 452 34.24 154.7 0.334 150.9
18 152 24.68 37.5 0.486 73.8
19 109 21.43 23.3 0.240 26.1
20 485 24.40 118.3 0.323 156.6
21 855 24.73 211.4 0.196 167.5
22 245 19.90 48.7 0.256 62.7
23 140 17.48 24.4 0.250 35.0
24 65 16.50 10.7 0.160 10.4
25 85 18.86 16.0 0.166 14.1
26 101 18.19 18.4 0.150 15.1
27 100 15.77 15.8 0.143 14.3
28 146 14.18 20.7 0.170 24.8
29 389 36.55 141.9 0.322 125.2
30 716 35.86 256.7 0.340 243.4
31 384 23.49 90.2 0.141 54.1
32 345 23.10 79.7 0.181 62.4
33 107 24.18 25.8 0.217 23.2
34 330 32.04 106.0 0.267 88.0
35 780 39.10 304.9 0.681 531.2
36 840 36.57 307.1 0.492 413.2
37 2,050 48.74 999.0 0.416 853.0
38 2,490 48.68 1,212.0 0.453 1,128.0
39 2,300 54.59 1,255.0 0.725 1,667.0
40 459.0 21.00 96.3 0.459 210.6
41 1,180 39.43 465.0 0.201 237.0
42 550 30.66 165.0 0.130 72.0
43 185 20.50 37.9 0.106 19.6
44 820 28.02 229.6 0.114 93.4
45 353 18.14 64.0 0.107 37.8
46 697 7.93 55.2 0.123 85.7
47 998 17.53 174.9 0.101 100.7
48 157 20.93 32.8 0.106 16.6
49 140 14.49 20.3 0.056 7.8
50 450 10.80 48.6 0.098 44.1
51 135 28.76 38.8 0.140 18.9
52 100 29.58 29.6 0.130 13.0
53 85 29.60 25.1 0.120 10.2
54 454 23.74 107.8 0.171 77.6
55 423 24.02 101.6 0.516 218.2
56 228 23.02 52.5 0.463 105.6
57 235 20.02 47.0 0.413 33.6
58 338 26.46 89.4 0.463 156.4
59 564 21.44 120.9 0.526 296.6
TOTAL/AVERAGE 28,452 31.52 8,967.9 0.405 11,516.7

 

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Figure 11.7 Measured Resource polygons for ‘B’ Zone, Workman’s bench, Nolan Creek Area

 

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Table 11.9 Polygonal block summary for ‘B’ Zone, Workman’s Bench Table 2 Polygonal Measured Resource calculations for ‘B’ Zone, Workman’s bench, Nolan Creek Area, Alaska

 

Polygon Tons Antimony (%) Antimony (tons) Gold (oz/ton) Gold (ounces)
1 185 34.32 64.0 0.298 55.0
2 237 40.13 95.0 0.618 146.0
3 175 39.36 69.0 0.507 89.0
4 475 47.50 226.0 1.105 524.0
5 590 41.42 244.0 0.652 384.0
6 574 45.32 260.0 1.060 608.0
7 195 31.32 61.0 0.425 83.0
8 289 17.59 50.8 0.154 44.5
9 830 37.15 308.0 0.802 666.0
10 675 34.97 236.0 0.724 489.0
11 116 21.73 25.2 0.123 14.3
12 79 19.76 15.6 0.130 10.3
13 160 10.10 16.2 0.313 50.1
14 186 21.60 40.2 0.451 83.9
15 487 15.25 74.2 0.430 209.4
16 875 25.54 223.4 0.317 277.3
17 95 16.51 15.7 0.241 22.9
18 331 16.06 53.1 0.244 80.8
19 209 4.59 9.6 0.067 14.0
20 107 5.16 5.5 0.070 7.5
21 145 13.82 20.0 0.063 9.1
22 155 13.58 21.1 0.050 7.8
23 365 7.98 29.1 0.160 58.4
24 385 5.65 21.7 0.083 31.9
25 567 8.30 47.0 0.310 175.8
26 269 4.77 12.8 0.256 68.8
           
TOTAL/AVERAGE 8,756 25.63 2,244.2 0.480 4,210.8

 

Table 11.10 Polygonal Measured Resource Calculation for ‘West’ Zone, Workman’s Bench, Nolan Creek area, Alaska

 

Polygon Tons Antimony (%) Antimony (tons) Gold (oz/ton) Gold (ounces)
1 565 2.86 16.1 0.908 513.0
2 446 2.39 10.6 0.108 48.2
3 450 3.12 14.0 0.921 414.5
4 359 2.64 9.5 0.121 43.4
5 131 3.36 4.4 0.140 18.3
6 73 9.30 6.8 0.143 10.2
7 210 9.81 20.6 0.124 26.0
8 297 18.09 53.7 0.105 31.2
9 110 19.06 20.9 0.261 28.7
10 95 12.10 11.5 0.225 21.3
11 109 14.53 15.8 0.215 23.4
12 166 13.13 21.8 0.229 38.0
13 286 18.35 52.4 0.293 83.8
14 397 11.75 46.6 0.098 38.9
15 175 21.56 37.7 0.146 25.6
16 537 19.82 106.4 0.140 75.2
17 160 23.59 37.7 0.143 22.8
18 192 35.32 67.8 0.230 44.2
19 75 31.78 23.8 0.196 14.7
20 115 21.74 25.0 0.113 13.0
21 256 25.28 64.7 0.147 37.6
TOTAL/AVERAGE 5,204 12.80 667.8 0.302 1,572

 

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Figure 11.8 Measured resource polygons for ‘West’ Zone, Workman’s bench, Nolan Creek Area

 

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Table 11.10 Summary data for Measured Resource in ‘A’, ‘B’ and ‘West’ Zones, Workman’s Bench, Nolan Creek area, Alaska

 

Physical
Parameters For
Resource
Calculations
‘A’ Zone ‘B’ Zone ‘West’ Zone Total or
Average
Total Strike Length of Vein Used in Resource Calculation 980 525 900 980
Maximum Depth (Vertical) of Vein Used in Resource Calculation 355 355 225 355
Average Sample Interval Width 0.95 0.65 0.60 0.73
Number of Drill Hole Intercepts and Channel Sample Locations Used 48 22 19 89
Number of polygons Used in Indicated Resource Calculation 59 26 21 106
Calculated Tons of Mineralization 28,452 8,756 5,204 42,412
Calculated Average Grade Sb (%) 31.52 25.63 12.80 28.00
Total Tons, Contained Antimony 8,967.9 2,244.2 667.8 11,875
Calculated Average Grade Gold (oz/ton) 0.405 0.480 0.302 0.408
Contained Gold (oz) 11,516.7 4,210.8 1,572.0 17,300

 

11.5 Indicated Lode Antimony-Gold Resource Estimate at Nolan Creek

 

Indicated mineral resources are that part of a mineral resource for which quantity and grade can be estimated with a level of confidence sufficient to allow the application of technical and economic parameters to support mine planning and evaluation of the economic viability of the deposit.

 

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During the 2009 Workman’s Bench evaluation, nine holes (9) totaling 2,663 feet in length were collared and oriented to test shallow extensions of: 1) A-zone, the largest of the several high-grade vein-fault structures; and 2) B-zone, a subsidiary parallel structure southeast of A-Zone. Sixteen (16) polygons define the indicated resources in both ‘A Zone’ and ‘B Zone’ vein fault structures, which aggregate 11,204 tons grading 19.7 percent antimony and 0.238 ounces/ton gold (Figures 11.9 and 11.10). The 2009 drill intercepts used to calculate the indicated resources are adjacent to the ‘A Zone’ and ‘B Zone’ vein-faults on Workman’s Bench. Tables 11.11 and 11.12 provide the numerical calculations for the Indicated Resource estimates within ‘A Zone’ and ‘B Zone’, Workman’s Bench, Nolan Creek area.

 

Table 11.11 Indicated resource block summary from 2009 Drill Program, A-zone, Workman’s Bench

 

Polygon Tons Antimony Antimony Gold Gold
    (%) (tons) (oz/ton) (ounces)
A (1) 806 34.45 277.7 0.479 386.1
B (2) 198 18.47 36.6 0.192 38.0
C (3) 820 49.45 405.5 0.557 456.7
D (4) 215 35.80 76.9 0.349 75.0
E (5) 450 5.64 25.4 0.035 15.7
F (6) 915 20.71 189.5 0.294 269.0
G (7) 750 37.20 279.0 0.398 298.5
H (8) 614 30.96 190.1 0.285 174.9
I (9) 675 7.17 48.4 0.098 66.2
J (10) 850 19.21 163.3 0.177 150.5
K (11) 1,212 3.78 45.8 0.124 150.3
L (12) 1,225 12.00 147.0 0.150 183.8
M (13) 1,694 10.12 171.4 0.189 320.2
TOTAL 10,424 19.72 2056.6 0.248 2,584.9

   

Table 11.12 Indicated resource block summary from 2009 Drill Program, B-zone, Workman’s Bench

 

Polygon Tons Antimony Antimony Gold Gold
    (%) (tons) (oz/ton) (ounces)
O (14) 430 24.28 104.4 0.093 40.0
P (15) 215 12.98 27.9 0.112 24.1
Q (16) 135 15.37 20.7 0.137 18.5
TOTAL/AVERAGE 780 19.61 153.0 0.105 82.6

 

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Figure 11.9 Indicated Mineral Resource polygons for ‘A’ Zone, Workman’s Bench, Nolan Creek Area, based on 2009 drilling.

 

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Figure 11.10 Indicated mineral resource polygons for B Zone, Workman’s Bench, Nolan Creek area, based in 2009 drilling

 

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The combined Measured and Indicated resource estimate for the Workman’s lode system is summarized in Table 11.13.

 

Table 11.13 Measured and Indicated lode antimony-gold resources, Workman’s Bench, Nolan Creek area

 

Resource Cut-off grade Quantity Grade Metal Grade Metal
Category (% Sb) (ton) (% Sb) (ton Sb) (oz/ton Au) (oz Au)
Measured and 4.0 53,616 26.27 14,089 0.372 19,968
Indicated            

   

The effective date of these indicated resources is July 12th, 2011; amended on September 16th, 2026
Cut-off grade is 4.0% Sb ‘equivalent’, which refers to the combined values of gold plus antimony expressed in terms of antimony.

 

11.6 Inferred Lode Antimony-Gold Resource Estimate at Nolan Creek

 

According to the CIM, an “Inferred mineral resource” is that part of a mineral resource for which quantity and grade can be estimated on the basis of geological evidence and limited sampling and reasonably assumed but not verified by geological and grade continuity (Staff, 2004).

 

Inferred lode resource estimates for Workman’s Bench include zones on the A, B, C and West zones and Pringle Bench are summarized in Table 11.14.

 

Table 11.14 Total Inferred lode Mineral Resources, Workman’s Bench and Pringle Bench Nolan Creek

 

Resource Deposit Cut-off grade Quantity Grade Metal Grade Metal
Category   (% Sb) (short tons) (% Sb) (ton Sb) (oz/ton Au) (oz Au)
Inferred Pringle 4.0 12,817 19.61 2,513.8 0.499 6,390.4
Inferred Workman’s Bench 4.0 19,642 10.83 2,127.0 0.273 5,362.1
Total Inferred Workman’s Pringle Benches Workman’s 4.0 32,459 14.29 4,640.8 0.362 11,752.5

 

The effective date of these resources is March 7th, 2011; amended September 18th, 2026 .
Mineral Resources which are not mineral reserves do not have demonstrated economic viability. The estimate of mineral resources may be materially affected by environmental, permitting, legal, title, taxation, socio-political, marketing, or other relevant issues.

 

 

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Figure 11.11 Inferred Resource polygons for ‘A’ Zone, Workman’s Bench, Nolan Creek Area

 

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Figure 11.12 Inferred Resource polygons for ‘B’ Zone, Workman’s Bench, Nolan Creek Area 

 

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Figure 11.13 Inferred Resource polygons for ‘C’ Zone, Workman’s Bench, Nolan Creek Area

 

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Table 11.15 Polygonal Block Inferred Resource estimate for ‘C Zone’, Workman’s Bench

 

Polygon Tons Antimony (%) Antimony (tons) Gold (oz/ton) Gold (ounces)
1 98 0.05 0.5 0.055 5.4
2 84 2.96 2.5 0.103 8.7
3 234 3.83 9.0 0.054 12.6
4 325 6.74 21.9 0.103 33.4
5 201 6.72 13.5 0.080 16.1
6 98 6.50 6.4 0.085 8.3
7 314 3.26 10.2 0.049 15.4
8 216 3.49 7.5 0.079 17.1
9 351 0.03 1.0 0.160 56.2
10 538 3.79 20.4 0.157 84.5
11 146 0.29 0.5 0.070 10.2
12 85 6.22 5.3 0.123 10.5
13 173 5.98 10.3 0.210 36.3
14 74 0.05 0.5 0.157 11.6
15 140 6.54 9.2 0.213 29.8
16 313 0.59 1.8 0.183 52.3
17 787 3.79 29.8 0.184 144.8
18 55 6.77 3.7 0.127 7.0
Total/Average 4,232 3.64 154.0 0.132 560.2

 

Table 11.16 Polygonal Block Inferred Resource estimate for ‘A Zone’, Workman’s Bench

  

Polygon Tons Antimony (%) Antimony (tons) Gold (oz/ton) Gold (ounces)
1 826 11.87 98.0 0.260 214.7
2 1,524 9.36 142.6 0.213 324.6
3 2,737 19.13 523.5 0.266 728.0
Total/Average 5,087 15.02 764.1 0.249 1,267.3

 

Table 11.17 Polygonal Block, Inferred Resource estimate for ‘West Zone’, Workman’s Bench

 

Polygon Tons Antimony (%) Antimony (tons) Gold (oz/ton) Gold (ounces)
1 164 14.03 23.0 0.069 11.3
2 152 7.44 11.3 0.068 10.3
3 774 12.38 95.8 0.075 58.1
4 643 19.49 125.3 0.067 43.1
5 595 14.86 88.4 0.055 32.7
6 2,536 10.94 277.4 0.928 2,353.4
7 470 3.64 17.1 0.107 50.3
Total/Average 5,334 11.96 638.3 0.507 2,704.4

 

Table 11.18 Polygonal Block Inferred Resource estimate for ‘B-Zone’, Workman’s Bench

 

Polygon Tons Antimony  (%) Antimony(tons) Gold (oz/ton) Gold (ounces)
1 2,291  9.96  228.0  0.105  240.5
2 1,733  15.20  263.4 0.147 254.8
3  965  8.28  79.2  0.347 334.9
TOTAL/AVERAGE  4,989  11.44 570.6  0.166 830.2

 

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Table 11.19 Summary of Inferred Antimony and Gold Resources From ‘A’, ‘B’, ‘C’, and West Zones, Workman’s Bench Lode, Nolan Creek Area.

 

Category Cut-Off Grade (% Sb Equivalent)

Quantity of Mineralization

(Short Tons)

Grade

(% Sb)

Metal (ton Sb) Grade (oz/ton Au) Metal (oz gold)
‘A’ Vein Inferred 4.0 5,087 15.02 764.1 0.249 1,267.3
‘B’ Vein Inferred 4.0 4,989 11.44 570.7 0.166 830.2
‘C’ Vein Inferred 4.0 4,232 3.64 154.0 0.132 560.2
‘West Vein Inferred 4.0 5,334 11.96 637.9 0.507 2,704.4
Totals 4.0 19,642 10.83 2,127.0 0.273 5,362.1

 

During 2009, eleven (11) drill holes totaling 2,329 feet were collared and oriented to test the ‘A zone’ and ‘West zone’ structures on Pringle Bench, which are the same structures that have been drill-tested on Workman’s Bench. Figure 11.14 illustrates the surface plan of the Pringle bench that the QP used in his resource calculations. The primary objective of the 2009 exploration program was to test deeper portions of both ‘A’ and ‘West’ vein-faults, which previously had been drill-tested to depths of only about 150 feet below the surface. Figures 11.15 and 11.16 illustrate the polygonal configuration of the ‘A Zone’ and the ‘West Zone’ mineralized structures respectively. Upon the combination of the previous (2009) and current (2011) data, twenty-three (23) polygons define an inferred resource of 12,817 tons grading 19.61 percent antimony and 0.499 ounces/ton gold. The 2009 exploration program on Pringle Bench: 1) confirmed gold and antimony mineralization to depths of up to 400 feet below the surface; and 2) yielded gold values that were higher than the average content observed in the shallower portions of the vein-fault system explored in 2007. Tables 11.20-to-11.24 summarize the polygonal block data for all inferred resource estimates on Pringle Bench.

 

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Figure 11.14 Surface view of Pringle Bench mineralized zones, showing drill locations; 2007 (black) and 2009 drill holes (blue).

 

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Figure 11.15 Polygonal Block Inferred Mineral Resource polygons for ‘A’ Zone, Pringle Bench, Nolan Creek Area, based in 2009 drilling.

 

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Figure 11.16 Polygonal Block Inferred Mineral Resource polygons for West Zone, Pringle Bench, Nolan Creek Area, based in 2009 drilling.

 

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Table 11.20 Polygonal Inferred Mineral Resource calculation for ‘A’ Zone, Pringle Bench, from Bundtzen (2009b)

 

Polygon Tons Antimony
(%)
Antimony
(tons)
Gold
(oz/ton)
Gold
(ounces)
1 63 12.78 8.1 0.037 2.3
2 134 26.27 35.2 0.019 2.5
3 205 31.49 64.6 0.119 24.4
4 138 36.67 50.6 0.112 15.5
5 82 26.67 21.9 0.127 10.4
6 115 29.80 34.3 0.246 28.3
TOTAL/AVERAGE 737 29.13 214.7 0.113 83.4

 

Table 11.21 Polygonal Inferred Mineral Resource calculation for Pringle Bench from 2009 Drill Program, A-Zone, (This Technical Report)

 

Polygon Tons

Antimony

(%)

Antimony
(tons)

Gold

(oz/ton)

Gold

(ounces)

A (1) 55 11.21 6.2 0.065 3.6
B (2) 311 22.51 70.0 1.953 607.4
C (3) 65 26.69 17.3 1.963 127.6
D (4) 254 28.46 72.3 0.126 32.0
E (5) 83 33.11 27.5 0.250 20.8
F (6) 1,218 30.81 375.3 0.150 182.7
G (7) 988 31.47 310.9 0.030 29.6
H (8) 314 35.32 110.9 0.023 7.2
I (9) 556 30.92 171.9 1.920 1,067.5
J (10) 1,404 27.37 384.3 1.930 2,709.7
K (11) 590 26.24 154.8 1.947 1,148.7
L (12) 886 18.56 164.4 0.076 12.5
M (13) 1,633 8.06 131.6 0.106 173.1
N (14) 664 5.93 39.4 0.110 73.0
TOTAL/AVERAGE 9,021 22.58 2,036.8 0.687 6,195.4

  

Table 11.22 Polygonal Inferred Mineral Resource calculation for ‘West’ Zone, Pringle Bench (Bundtzen, 2009b)

 

Polygon Tons Antimony
(%)
Antimony
(tons)
Gold
(oz/ton)
Gold
(ounces)
1 80 14.11 11.3 0.061 4.9
2 160 11.37 18.2 0.036 5.8
3 206 12.12 25.0 0.044 9.1
4 99 18.68 18.5 0.051 5.0
5 615 3.91 24.0 0.021 12.9
6 290 9.46 27.4 0.028 8.1
7 182 15.47 28.2 0.095 17.3
8 319 12.43 39.7 0.099 31.6
TOTAL/AVERAGE 1,951 9.86 192.3 0.049 94.7

 

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Table 11.23 Polygonal Inferred Mineral Resource calculation from 2009 Drill Program, West-Zone, Pringle Bench

 

Polygon Tons

Antimony

(%)

Antimony (tons)

Gold

(oz/ton)

Gold

(ounces)

O (15) 297 3.97 11.8 0.010 3.0
P (16) 505 7.15 36.1 0.014 7.1
Q (17) 378 5.85 22.1 0.018 6.8

TOTAL/

AVERAGE

1,108 6.31 70.0 0.015 16.9

 

Table 11.24 Polygonal Total Inferred Lode Mineral Resource Antimony-Gold calculation, Pringle Bench, Nolan Creek

 

Resource Category

Cut-Off

Grade

(% Sb)

Vein-Fault Zone

Quantity

(tons)

Grade

(% Sb)

Metal (tons Sb) Grade (oz/ton Au)

Metal

(oz Au)

Inferred 4.0 A (2008) 737 29.13 214.7 0.113 83.4
Inferred 4.0 A (2009) 9,021 22.58 2,036.8 0.687 6,195.4
Inferred 4.0 West  (2008) 1,951 9.86 192.3 0.049 94.7
Inferred 4.0 West (2009) 1,108 6.31 70.0 0.015 16.9

Inferred

Total/Average

4.0 A and West Zones Combined 12,817 19.61 2513.8  0.499  6390.4

  

The 2009 Inferred Resource estimates for Silverado’s Nolan Creek properties; i.e., Workman’s Bench and Pringle Bench, did not change from what was reported by the QP in his previous Technical Report issued June 1, 2009; (amended July, 2011). The inferred lode mineral total tonnage increased from 24,077 tons as inferred in the 2009 Technical Report to 32,459 tons in this Technical Report, or an increase of about 35 percent. In terms of in-place metal content, antimony increased from 2,997.6 tons as indicated in the 2011 Technical Report to 4,640.8 tons in this Technical Report, an increase of 63 percent. In-place gold increased from 5,894.7 ounces as Indicated Mineral Resources in the 2011 Technical Report to 11,752 ounces in this Technical Report.

  

11.7 Mineral Resource Uncertainty Discussion

 

Concerning placer resources, the QP constructed 39 polygons to determine an Indicated Resource estimate for placer gold deposits in Nolan Creek Valley; namely the 3B3 and D-Block #1 Below Discovery. Both placers occur below overburden ranging from 70-to-100 feet of overburden. Most of the unconsolidated ground is frozen and is capable of being mined using mechanized equipment successfully deployed by the previous owner. However, in 2003, live water was encountered while attempting to mine buried placer gold deposits about 400 feet upstream from D-Block #1 Below Discovery on the right limit of Nolan Creek, causing mine operations to be curtailed. Another uncertainty is that historic underground placer mining has occurred adjacent to 3B3 and D-Block #1 Below Discovery resource blocks. Although past drilling efforts carried out by the previous owner did not encounter mined ground, there is a possibility that some of the indicated resource area has been depleted by historic operations.

 

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For lode mineral resources, the QP constructed 123 polygons to demonstrate Measured and Indicated Resources of gold and antimony at Nolan Creek; and 62 polygons to demonstrate Inferred Resources of antimony and gold at Nolan Creek. The QP is confident with these resource estimates. However, they occur in relatively thin fault-controlled structures and mining methodology is not discussed in this report.

 

The QP used traditional polygonal methods to determine resource potential for both placers and lodes. The QP acknowledges that many mineral resource estimates are now determined using computer-based ‘kriging-based’ technologies.

 

To confirm the results of the polygonal methods used in determining the resource calculations at Nolan Creek, the QP contacted Will Robinson, E.I.T. Senior Geologist, who has experience with the VulcanTM computer-based, block model method for estimating mineral resources. Robinson agreed to examine selected portions of Silverado’s data base and calculate indicated resources using a Vulcan program. The QP supervised Robinson during the Vulcan-Polygonal test comparison and formatted the design of the test. But the latter ran the computer program independently of the QP. Because of time considerations, the QP determined that the comparison would be confined to the ‘A’ Zone in Workman’s bench, which contains the largest single block of resources. The QP told Robinson to: 1) set a cut-off at 4% Sb equivalent; and 2) cap gold grades at 1.5 oz/ton. The following was given:

 

·All drill, underground, and surface (trench) information that was used to calculate polygonal resources was forwarded to Robinson by the QP. A table containing only ‘A’ zone data was prepared for the Vulcan estimate. All of this data was derived from Appendix I. This included drill hole depths, precise GPS collar coordinates, drill hole intercepts from Table 11.2 of this Technical Report; estimated true widths of mineralized vein-fault intercepts and weighted assay grades are from this Technical Report. The data used to calculate resources within ‘A; Zone on Workman’s Bench consists of forty (40) diamond core holes totaling 10,079 feet as well as ten (10) surface trenches and underground channel sample data that test the ‘A’ Zone. The maximum drill hole depth is 497 feet and the average depth is 352 feet. Spacing between drill holes and sample points varies but is more-or less isometric, averaging about 75 feet. Files created by Robinson for the Vulcan program include COLLAR.csv, ASSAY.csv, and SURVEY.csv.

 

·To help facilitate the effort and reduce the time expended on the Vulcan program, the QP used the specific gravity and tonnage factors previously calculated for the polygonal estimates for the Vulcan resource estimates.

 

Past polygonal resource estimates were not given to Robinson. After discussions, Robinson wanted to combine the 2007-2008 ‘A’ Zone data set with the 2009 ‘A’ Zone data set. In that the 2007-2008 data from ‘A’ Zone on Workman’s bench calculated an indicated resource prior to

 

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conversion into a measured resource, the QP judged that it was reasonable to combine the 2007-2008 and 2009 data sets. A three-dimensional geologic solid representing the A-zone vein was created using conventional methods in Vulcan. The solid conforms to the uppermost and lower most assay interval for drill holes and trenches contained within the A-zone vein. This solid was used to constrain the compositing, block model construction and resource estimation for this study. The block model was constructed using the Vulcan 3D modeling software. The orientation of the A-zone block model was selected to be 45o in order to conform to the observed trend of mineralization. The parent block size was selected to be a uniform 10’ x 10’ x 10’. The indicated resource estimation for the block model was conducted using the Inverse Distance Squared (ID2) method. The search ellipse for the estimation was selected to be 23’ x 5’ x 23’ in order to conform to the planar, steeply dipping nature of the A-zone vein and reflect the average spacing between composites. The sample constraints put on this estimate were that a minimum of one sample was required for a given block to be estimated and no more than 4 samples could be used for estimating any given block. The results of the block model estimation can be seen in Figures 11.17 and 11.18.

 

 

 

Figure 11.17 Plan view image of Workman’s bench ‘A’ Zone vein-fault. Estimated blocks are shown displaying antimony grade. Scale (squares) are 100 feet across.

 

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Figure 11.18 Side profile view of Workman’s Bench ‘A’ Zone looking northwest; displaying Sb grade.

 

The indicated resources contained within the A-zone vein were calculated using the above block estimations. Specific gravity and tonnage factor data was available for all assay intervals and was included in the resource estimate. Although the QP mandated that a 4.0% antimony-equivalent cut-off grade be used, Robinson judged that it would be useful to the study to compare the indicated resources contained in the A-Zone vein using cutoff grades of 0.0% equivalent Sb and 4.0 % equivalent Sb (Table 11.25). Nearly the same amount of antimony is realized for the zero percent versus 4.0 percent Sb cutoff (1.4 percent difference), but more gold is indicated (6.9 percent

difference) in the zero percent cut-off.

 

Table 11.25 Measured and Indicated Resources calculated by VulcanTM that are contained in Workman’s Bench ‘A’ Zone only vein-fault from 2007-2009 exploration data

 

Material Cutoff
Grade (% eq
Sb)
Sb
(% eq)
Au
(oz/ton)
Total
Tons
Total cu ft Tons
ANTIMONY
Ounces
GOLD
MINERALIZATION 0.0 23.15 0.275 51,713 454,833 11,972 14,221
MINERALIZATION 4.0 29.17 0.327 40,458 344,776 11,802 13,230
WASTE 4.0 1.50 0.088 11,254 110,057 169 990

  

Table 11.26 compares the indicated resource estimates using polygonal methods versus the indicated resource estimates produced by the Vulcan analysis. Summary data for indicated resources of ‘A’ zone on Workman’s Bench determined from polygonal estimates are contained in

At a 4.0 percent Sb cut-off, the Vulcan indicated resource volume (in tons) estimate is 4.0 percent larger; the antimony grade is also 2.9 percent larger, but the Vulcan gold grade is 9.9 percent lower than the polygonal indicated resource estimate. In terms of in-place metal resource, the Vulcan antimony estimate is 6.9 percent higher than the polygonal estimate, but the Vulcan gold estimate is 6.20 percent lower than the polygonal estimate. Stone and others (1998) have stated that resource estimates between two completely different estimation methods can vary by 10 percent or more. The QP concludes that the polygonal resource estimate compares favorably to the Vulcan resource estimate and that the former estimate is an accurate indication of size and grade of mineralization in the Nolan lode system.

 

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Table 11.26 Comparative Results of Polygonal Method for resources in A-Zone Workman’s Bench, used by writer, versus computer VulcanTM block model method

 

Mineralized Zone Cut-Off Sb (%) Au
(oz/ton)
Total short
Tons ore
Total
Cubic
feet
Tons Antimony Ounces
Gold
Polygonal Method, 2007-2008 Data, Workman’s Bench ‘A’ Zone 4.0 % Sb equivalent 31.52 0.405 28,452 235,867 8,967.9 11,516.7
Polygonal method 2009 Data, Workman’s Bench ‘A’ Zone 4.0 % Sb equivalent 19.78 0.248 10,444 89,192 2,066.0 2,593.6
Total Polygonal Method, Workman’s Bench ‘A’ zone 2007-2009 data 4.0 % Sb equivalent 28.36 0.363 38,896 325,058 11,033.9 14,110.3
Vulcan Estimate 2007-2009 data 4.0 % Sb equivalent 29.17 0.327 40,458 344,776 11,802.0 13,230.0
Differences between Polygonal Method and Vulcan estimate  (in %) 4.0 % Sb equivalent 2.86+ 9.90- 4.02+ 5.70+ 6.90+ 6.20-

  

11.8 Assumptions for Multiple Commodity Resource Estimate

 

In nearly all cases, the principal mineralized zones contain, stibnite, quartz, minor arsenopyrite. Metallurgical work, assay information, and mineralogical content all suggest that the principal mineral products are free gold and stibnite. Both are readily marketable in today’s economic environment. Gold is at record high prices. Antimony is currently a much sought after critical mineral/metal. Testing shows that the gold reports to both arsenopyrite and stibnite on wiffley table tests. However, the QP does not consider arsenic as a recoverable commodity. Hence the principal resource estimates discussed in this Technical Report are focused on antimony and gold.

 

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11.9 Qualified Person’s Opinion on Factors that are likely to influence the prospect of economic extraction.

 

The confirmation of drill-indicated resource, both surface and underground engineering studies quantifying wall-rock stability and selected mining methods, environmental mitigation where-ever needed, overall environmental assessment of the property, and market demand of a mineral product will all influence the economic viability of developing the lode deposits of antimony and gold and placer gold resources on GLM’s claims in Nolan valley.

 

Based on his experience reviewing antimony and gold deposits in Alaska, the Russian Far East, and elsewhere, it is the QP’s opinion that the grade and known size characteristics of lode antimony and gold and the relatively large nugget content of the placer deposits at the Nolan Creek property provide reasonable prospects for economic extraction of the mineral resources based on this Initial Assessment and Technical Report Summary.

 

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12.0 MINERAL RESERVE ESTIMATES

 

Mineral reserve estimates are not presented in this Technical Report by the QP on the subject mineral properties.

 

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13.0 MINING METHODS

 

No Mining Methods have been proposed for the mineral properties that are the subject of this Technical Report.

 

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14.0 PROCESSING AND RECOVERY METHODS

 

The QP described the historic processing of placer gold by the previous owner (see Chapter 10.1; Placer Deposits). Hower, the QP does not recommend a specific processing methodology for placer gold recovery in this Technical Report.

 

The QP has described results of a bulk sample metallurgical test on lode antimony-gold mineralization in Chapter 10.2 of the Technical Report. However, the QP is not recommending any recovery method until more research has been completed by GLM.

 

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15.0INFRASTRUCTURE

 

15.1Previous Production Infrastructure on property

 

The previous owner of the mineral property (Silverado) maintained a self-sufficient camp that included camp infrastructure capable of housing thirty (30) mine employees, machine shops, kitchen, individual ‘apartments’ for employees, a laundromat, recreational facilities, laboratories and a diesel power plant (see Figure 4.4 of this Technical Report). The power plant was capable of supplying up to 1.5 Mw of power for all needs within the camp and for maintenance of underground mining equipment. The sewer system was specially designed by Life Water Engineering in Fairbanks due to the existence of permafrost. A 2007 upgrade project included:

 

·The purchase and installation of a ten-room housing unit;

 

·The construction of an engineering office;

 

·The upgrading of laboratory facilities;

 

·The installation of a new sewage treatment facility;

 

·The construction of a new kitchen and cafeteria; and

 

·The installation of new communications equipment.

 

·Installation of 2,500 gallon plastic holding tanks for water needs.

 

It was previously assumed by the QP that the camp facility was completely capable of supporting the proposed underground development on Workman’s Bench.

 

15.2 Present State of Infrastructure on Property

 

The QP inspected the camp facility in June, 2026. Virtually all of the facilities listed above are in a state of disrepair and cannot be used. The QP recommends that construction of new infrastructure should take place only after a complete review of what current camp infrastructure is salvageable and what must be removed from the site.

 

  

Figure 15.1 A—Fuel tank storage facility in 2009; B— Same Fuel tank storage facility in 2026; which features collapsed staircase to top of tanks a failed fire extinguisher and other repair issues Both photos by the QP

 

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16.0 MARKET STUDIES

 

Market studies have not been completed for this Technical Report.

 

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17.0       GEOTECHNICAL-HYDROLOGICAL-ENVIRONMENTAL STUDIES, PERMITTING, AND PLANS, OR AGREEMENTS WITH LOCAL INDIVIDUALS OR GROUPS

 

17.1Geotechnical-Environmental Studies

 

The previous owner aggressively engaged in land reclamation efforts during their development of both surface and underground mining activities. All of their work was completed under guidance of both the Alaska Department of Environmental Conservation and the U.S. Bureau of land Management (USBLM).

 

 

Figure 17.1 Example of land reclamation conducted on previously mined Odgen-Eureka Bench, left limit of Nolan Creek, circa 2006. Photo from QP files

 

Geotechnical studies of the Workman’s and Pringle Bench have been mainly confined to core logging by the previous owner’s geological contractors completed during the definition of ore zones. The QP has examined the underground workings on Workman’s bench during April 7-10, 2008, and measured joint sets, foliation and compositional banding, and inspected fault zones. Foliation and compositional banding strikes northeast (025-045o) and generally dips shallow to the southeast ranging from 05-to-015o. At some stations, compositional banding and foliation is horizontal. Figure 17.2 illustrates the near-horizontal nature of compositional banding in phyllitc schist in the ‘A’ Crosscut. Northwest striking high angle faults offset the northeast veins in small amounts. The previous owner reclaimed placer mine tailings under the advice and direction of the Alaska Department of Natural Resources.

 

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Because the claims are federal, reclamation activities follow guidelines administered by the USBLM. Overall water quality is administered by the State of Alaska Department of Environmental Conservation (ADEC). The QP conducted an audit of the ADEC and Alaska Department of Natural Resources (ADNR) websites for any environmental liabilities related to Silverado’s Nolan Creek properties and could not find any notice of water quality violations, public notice violations, non-point source water pollution control issues, or wastewater violations.

 

Nolan Creek is classified as an ‘industrial stream’, which recognizes placer mining as a determined use in the Koyukuk district. Under Alaska State law all disturbed lands must be reclaimed after mining activities have ceased, regardless of land ownership. For placer mining in Nolan Creek, Silverado participates in the statewide bond pool administered by the ADNR. Reclamation has occurred consistent with the operating plan and has been reduced from a bonded 60 acres to about 40 acres, per discussions with USBLM field personnel.

 

The Nolan Creek property is on federal lands that are adjacent to Gates of the Arctic National Park and Preserve, which is administered by the U.S. National Park Service (USNPS). According to records researched by the QP, neither the USBLM nor USNPS had lodged a complaint about exploration or mining activities that have occurred on Nolan Creek claims at least through 2011.

 

All mineralized zones at Workman’s Bench are near-vertical ‘vein-faults’ that strike in a northeasterly direction. Most of the northeast-striking joint sets have some silica vein selvage infilling. The northwest striking joints and fractures have both vein filling but are also frequently barren. The main ‘A’ zone shows slickensides in a horizontal configuration, indicating mostly post mineralization, lateral low angle slip planes. The ‘B’ and ‘West’ Zones also occur along fault planes, but do not show obvious evidence of lateral movement. Past mine planning took into account the fault structure of ‘A’ zone and avoided driving along it’s projected surface to prevent wall rock instability.

 

Wall rocks enclosing the stibnite-quartz lodes contain significant pyrite and pyrrhotite, which could result in Acid Rock Drainage issues (ARD). PRGCI geological contractor R.C. Swainbank estimated sulfide content in 18 core drill holes from Pringle and Workman’s bench that were completed in 2007 (Figure 17.3). Phyllitic schist contains the highest sulfide content. The QP recommends that any plan of action for lode mineral development incorporates the characterization of the material, a definition of waste rock, geochemical testing, review of geochemical parameters present in drill core, and an implementation plan.

 

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Figure 17.2 A—Underground drift looking E/SE in 2008. Note near-horizontal, phyllitic schist bands in base and roof; B—portal on April 12th , 2008. Photos from QP files.

 

17.2 Hydrological and Engineering Studies

 

The Workman’s Bench deposit occupies a near-horizontal terrace level at an elevation of 1,800 feet near the confluence of Smith Creek, a third order tributary, with Nolan Creek, a second order trunk stream. The Workman’s Bench mineralized system trends in a northeast direction toward Smith Creek Valley. The underground workings driven into the Workman’s Bench lode are dry. One hole, 08BT17, which is part of the Workman’s bench evaluation, intersected “live water”. The drill hole is situated at the northeastern edge of the drill pattern completed in Workman’s bench and does not affect the Mineral Resources described in this Technical Report. The drill hole likely intersected water from Smith Creek—drilling did not advance further because it was assumed that Smith Creek constituted a northeasterly limit of Workman’s bench due to this condition

 

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Figure 17.3 Core logging summary from 2007 core drilling, illustrating rock types and sulfide-bearing zone.

 

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According to the previous owner’s operational mine manager, Ray Medina (written email communication), the hole was plugged off. The QP assumed from inspection of data that no other holes on Workman’s Bench contained water and all drilled dry. Mr. Medina did not believe the single wet drill hole on the northeastern margin of the defined resource is a problem and suggests that the drill hole 08SH17 could be grouted off if necessary. Based on observations of the drill hole data and underground mine conditions, the QP agreed with this assessment. The other hole that drilled wet was on Pringle Bench to the northeast (07SH04). There is other evidence to corroborate the general dry nature of the bedrock subsurface. A number of large diameter well holes were drilled in the camp vicinity to find a good source of water. Three drill holes explored the Workman’s Bench area to depths of up to 400 feet but failed to encounter water. Left limit benches on Nolan Creek; i.e., Swede Channel and Mary’s Bench, were found to be dry during underground drift mining of frozen placer gold deposits (see Bundtzen, 2006 a-c).

 

17.3 Environmental Monitoring

 

The QP is not aware of any current environmental monitoring on the GLM properties in Nolan Creek valley.

 

17.4 Water Management Plan

 

The QP is not aware of the current water management plan being implemented on the GLM properties.

 

17.5 Mine Closure

 

Alaska Statute Title 27.19 (Reclamation) and Alaska Statute 38.05 require Reclamation and Mine Closure Plans as part of the APMA process for approval.

 

A potential issue for past mine closure by the previous owner deals with the maintenance shop facility at the Nolan Creek Mine. The shop has a dirt floor and has been in use since the early 1980s to repair heavy equipment such as various types of drills, low profile Dux mine-haul trucks, tractors and miscellaneous vehicles. The shop may contain contaminated soils that will need to be remediated. Other issues may involve fuel storage, and removal of other materials from contaminated sites at the original Nolan Camp.

 

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Figure 17.4 —A--Inside machine shop as it appeared in 2006 with mechanic repairing low-profile mining equipment; note dirt floor in shop; B—inside machine shop as it appeared on June 13th, 2026—both photos from QP files.

 

17.6 Permitting

 

Presently a mixed property ownership for GLM claims exists between the State of Alaska and the U.S. Interior Department Bureau of Land Management. This manifests itself in both state and federal mining claims. The state of Alaska has General Selection Lands (GS 5167) Ta’d surrounding the active USAC federal Mining claims and an ANILCA Top Filing covering the active federal mining claims owned by USAC. GLM/USAC has also located State of Alaska mining claims over the active federal mining claims to protect its claim ownership position. This process has been used numerous times to facilitate ownership transfer from BLM to the State of Alaska for high value mineral lands. Currently, permit requirements include the following:

 

Alaska Department of Natural Resources

 

Alaska Placer Mining Application (APMA AAC Title 27, AS 38.05)

Approved Plan of Operations (AAC Title 27, AS 38.05)

Approved Reclamation Plan (AAC Title 27, 38.05)

Approved Mine Closure Plan (AAC Title 27, 38.05) 

Temporary Water Use Permit (TWUP 11 AAC 93.035, 93.220)

 

Alaska Department of Environmental Conservation

 

APDES (Authorized under the federal Clean Water Act, 33 U.S.C. 1251-1387

and implemented in Alaska by 18 AAC Chapter 83) 

Storm Water Plan, SWPPP; (AS 46.03.100; 18 AAC 83.615)

Industrial Waste Water Permit (APDES Program) 

Solid Wate Permit (ACC Title 17, AS Title 16)

Air Quality Permit (AS 46.14, 18 AAC 50)

 

Alaska Department of Fish & Game

 

Title 16 Habitat Permit (AS Title 16)

 

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U.S. Army Corps of Engineers

 

404 Wetlands Permit (Clean Water Act)

 

U.S. Bureau of Land Management

 

Plan of Operations Approval 

Environmental Assessment (EA, National Environmental Policy Act of 1969, 43 CFR Part 46) 

Reclamation Plan (30 U.S. Code 1258 Supplemented by 43CFR Part 3600, Subpart 3601 and related BLM manuals)

 

Importantly, an Alaska Placer Mining Application Permit (APMA Permit) will be required for GLM to operate on their claims at Nolan Creek. Two Nolan Creek claims were found to be listed on active State of Alaska APMA Permits during calendar year 2011, which reflects the recent underground placer mining activities that have taken place in Swede Channel and Mary’s East placer deposits. Other APMA Permits identified on other claims in Nolan Creek Valley have been closed due to inactivity.

 

The previous owner filed active Plan of Operations on Nolan Creek is filed with USBLM. Both surface and underground mining activities follow the rules administered by the U.S. Mine Safety and Health Administration (MSHA). The previous owner’s mining operations on Nolan Creek had been inspected by MSHA officials several times during 2002 to 2003. The QP observed two field inspections concerning the previous owner’s activities by MSHA officers. One citation was issued during the spring of 2006 that requested remedial action at their portal for the ‘Swede Channel Project’. The portal for those underground workings was shored up and subsequently approved by MSHA.

 

The previous owner acquired a permit from USBLM to collect a bulk mineralized sample. This permit would have allowed the previous owner to acquire up to 1,000 cu yd of mineralized materials for metallurgical testing and analysis from their Workman’s Bench stibnite-gold resource area. The QP identified the need for former owner to produce a potential acid generation plan for the bulk sample collection effort.

 

In June, 2008, the previous owner engaged SRK Consulting, Inc. (SRK) to complete a Sampling and Analysis Plan (SAP) as part of a Metal Leaching/Acid Rock Drainage (ML/ARD) mitigation program for the Nolan Lode project. Field work by SRK professionals took place in July, 2008 at Nolan Camp. The purpose of the site visit was to evaluate: 1) existing weather conditions; 2) potential of future changes in oxidation conditions; 3) mobility of regulated contaminants; and 4) any differences between tock types. SRK reviewed site geology and examined core from 2008 drill holes. This work confirmed that sulfides occur not only in mineralized vein-faults but also disseminated throughout the wall rock. Table 17.1 summarizes the analytical results from the initial sampling collection program. SRK examined gangue minerals and identified siderite and ankerite (iron-rich carbonates) but calcite was judged to be uncommon. Seven samples collected by SRK from the existing adit waste rock, rock exposed in historic trenches, and from weathered pyritic bedrock for field rinse (contact) tests to evaluate the initial acid generating potential. Three samples of relatively un-oxidized adit waste rock (Nolan 1-3) were not acidic (pH=6.97-7.44) although the presence of soluble weathering products was shown by elevated conductivity. Two older trench samples (Nolan 6-7) were also non-acidic (pH=7.07-7.33) but also showed the presence of soluble weathering. One weathered phyllite sample was strongly acidic (pH=2.48). A significant initial conclusion of these results is that because un-weathered materials are relatively neutral, the objective of an ARD mitigation plan is to minimize oxidation of waste rock and ore materials during disposal and in-capsulation.

 

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Table 17.1 Results of Field Rinses of samples, Nolan Lode Project; from Day and Jeffress (2008)

 

Sample # Sample Descriptions pH Conductivity ORP
      (uS)  
Distilled water   4.85 9 391
Nolan 1 Phyllite near portal opening waste 7.02 1031 188
  materials      
Nolan 2 Phyllite near portal opening waste 6.97 701 204
  materials      
Nolan 3 Phyllite near portal opening waste 7.44 489 189
  materials      
Nolan 6 Phyllite fines from trench near Smith Creek 7.07 3,930 208
Nolan 7 Black phyllite from trench near Smith 7.33 1,751 206
  Creek      
Nolan 8 Salts precipitated from black phyllite 7.71 3,360 186
Nolan 9 Weathered bedrock, orange 2.48 4,170 596

 

At the request of SRK, the previous owner’s contractors collected samples from the underground mine workings for further testing, which are summarized in Table 17.2. The general approach of the underground sampling program as outlined by SRK was to target 13 feet (4 m) of true width in waste rock to evaluate variations along mineralization. However, the QP has not verified the results of analytical testing of these samples.

 

Table 17.2 Underground sampling program for ML/ARD Program, Nolan Camp, 2008

 

Sample # Site Description
DLRW7140811 Waste sample from vein rib, D crosscut
DLRW7140812 Waste sample from vein rib, D crosscut
DLRW714081 Waste rock samples from face, D crosscut
DLRW714082 Waste rock samples from face, D crosscut
DLRW7140821 Waste rock sample from rib near intersection of A and D crosscut
DLRW7140822 Waste rock sample from rib near intersection of A and D crosscut
DO714081 Stibnite ore samples from main vein
DO714082 Stibnite ore samples from main vein

 

A regulatory issue did affect the previous owner’s 2007-2008 core drilling program on Pringle Bench north of Smith Creek. Exploration must comply with Section 106 of the National Historic Preservation Act (NHPA) as codified in USBLM regulation 36CFR 800. Silverado hired Northern Land Use Research (NLUR) of Fairbanks, Alaska to complete a cultural review on a number of claims where historic mining activities had taken place. NLUR produced a report for the previous owner detailing the extent of historical artifacts present on the mining claims. That report was then forwarded to the USBLM (Neely, 2007).

 

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17.7 Plans, Negotiations, or Agreements with Local Individuals or Groups

 

The QP is unaware of any negotiations or agreements with outside groups in the exploration and development of their mineral properties as described in this report.

 

17.8 Descriptions of any commitments to ensure local procurement and hiring

 

The QP is unaware of any commitments to ensure local procurement and hiring by USAC.

 

17.9 Qualified Person’s Opinion

 

The previous owner of the claims in the Nolan Creek area conducted geotechnical, hydrological, and environmental studies needed to acquire necessary permits to conduct their mining operations for placer gold and permits to conduct exploration of lodes.

 

The QP is unaware of any agreements reached with local individuals and groups. However, the previous owner established economic relations for provisions of goods and services necessary to operate their mining ventures. The previous owner was a regular customer for fuel, groceries, and needed equipment from Fairbanks and beyond as needed to operate their enterprise at Nolan Creek.

 

However, the Nolan camp closed nearly 15 years ago, and as a result, these relationships have ended. The QP believes that, given all the circumstances discussed above, it would be reasonable for GLM to initiate an aggressive program to rehabilitate and develop the lode antimony-gold resources described in this Initial Assessment and Technical Summary Report.

 

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18.0 CAPITAL AND OPERATING COSTS

 

No capital or operating costs were generated for this Technical Report.

 

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19.0 ECONOMIC ANALYSIS

 

No economic analysis has been completed by the QP for this Technical Report.

 

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20.0 ADJACENT PROPERTIES

 

The Slisco Bench placer gold deposit occurs in the Vermont Creek drainage about two miles northeast of the subject claim group. The auriferous bench was explored extensively by RC drilling by the previous owner of the Nolan Creek claims during 2004-to-2005 (see Bundtzen (2008c). The bench system is thought to be very similar to that Nolan Creek valley and may have formed due to the same geological processes as at the former site.

 

Antimony-gold lode deposits have been described in the Chandalar mining district about 40 miles east of the Nolan Creek area and at Sukakpak Mountain about 15 miles north of the Nolan Creek and east of the Dalton Highway (Kurtak et al (1992). Both vein systems cut rocks of the Coldfoot terrane and may have a similar geological origin to those exposed on the subject claims in the Nolan Creek area. No lode antimony-gold mineral resources have been identified at either locale.

 

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21.0 OTHER RELEVANT DATA AND INFORMATION

 

There is no additional relevant data to be reported by the QP for this Technical Report.

 

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22.0INTERPRETATION AND CONCLUSIONS

 

22.1Mineral Resources

 

High-grade lode antimony and gold resources occur on Workman’s Bench and Pringle Bench in the Nolan Creek area, Wiseman District, Alaska, which has been previously examined for previous owners by the QP. There has been no additional environmental base line work, surface and underground engineering investigations, or metallurgical work at Nolan Creek since 2011. On Workman’s Bench, drill-tested, Measured and Indicated Mineral resources amount to 53,616 tons grading 26.27 percent antimony and 0.372 oz/ton gold. Using both drill-indicated and surface trenching data, an Inferred Mineral Resource totals 32,459 tons grading 14.50 percent antimony and 0.362 oz/ton gold occurs at Workman’s Bench and Pringle Bench to the northeast.

 

Based on targeted RC drilling programs across Federal placer claims, the previous owner identified an indicated resource in D-Block #1 and 3B3 zones amounting to 66,800 cubic yards grading 0.095 oz/yd gold.

 

It is assumed by the QP that both resource types would be developed using underground extraction technologies.

 

22.2 Environmental Permitting and Social

 

Permit requirements include an Alaska Placer Mine Application (APMA) from both state and federal agencies, including the U.S. Bureau of Land Management; a national pollution discharge elimination system (NPDES) permit from the U.S. Environmental Protection Agency; a 404 Wetlands permit from the U.S. Army Corps of Engineers; approval from the Mine Safety and Health Administration (MSHA); APMA and Bonding negotiations from the Alaska Department of Natural Resources (ADNR); a waste water treatment permit from the Alaska Department of Environmental Conservation (ADEC); and a Title 16 Permit from the Alaska Department of Fish and Game (ADF&G).

 

GLM will need to negotiate a maintenance plan for the Nolan Road with the Alaska Department of Transportation and Public Facilities, which conforms with guidelines set forth by the Alaska State Historical Preservation Office, if artifacts are encountered.

 

The QP is unaware of any social interactions or obligations with other groups active in the Nolan Creek area.

 

22.3 Mineral Processing

 

On behalf of the previous owner, the QP collected a 414 pound bulk sample of semi-massive to massive stibnite, vein quartz, and wall rock gangue all from the defined mineralized ‘A’ zone in the Workman’s Bench underground workings (see Bundtzen, 2008c). The purpose was to determine the mineralogical nature of the antimony mineralization and the source of significant gold values. That bulk sample was collected underground from the main ‘A Zone’ on Workman’s Bench.

 

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The bulk sample was sent to Hazen Research Labs Inc. (Hazen) in Golden, Colorado, USA in to determine the most optimal grind for potential marketing of a stibnite product and identify the mineralogical nature of gold and antimony values. The bench test results were very successful in helping to identify a processing path to produce gold and antimony concentrates for the market.

 

There is variation in gold content of the stibnite-bearing zones, even within constrained sample collection areas. The QP suggests that four (4) additional bulk samples of vein-fault mineralization be collected: 1) an additional sample of ‘A’ zone mineralization on Workman’s Bench ; 2) a bulk sample from ‘B’, West, and C zones on Workman’s Bench; 3) a bulk sample of the ‘A’ zone from Prongle Bench; and 4) a bulk sample from other mineralized zones on Pringle Bench.

 

22.4 Mineral Reserves

 

No Mineral Reserves have been identified in this Technical Report.

 

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23.0RECOMMENDATIONS

 

23.1 Mineral Resources

 

The QP does not make any specific recommendations to GLM/USAC for advancing their Indicated placer gold resources in Nolan Creek Valley. If those resources become a priority for development, the company should attempt to determine whether the paystreaks occur in dry versus water environments.

 

Going forward, GLM should complete additional infill diamond core drilling on Workman’s Bench. Workman’s Bench should be the top priority because it contains the best chance thus far known for documenting consistent widths and grades of stibnite-quartz-gold mineralization. The exploration focus on ‘A’ zone previously described but also include subsidiary vein systems. Drill-testing the zone of inferred mineralization should be given a high priority. A drill priority should also be to drill-test Pringle Bench. Figures 23.1 and 23.2 illustrate the proposed target areas.

 

 

 

Figure 23.1 Plan map of Priority 1 work program for Workman’s Bench, illustrating drill pattern to be used (in blue), and past drill collars and intercepts (in black and red).

 

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Figure 23.2 Priority II program recommended for Pringle Bench, illustrating drill pattern to be used

 

The diamond drill core should be of a larger size than the modified NQ core previously used--not necessarily due to high recovery as the older NQ core was satisfactory in producing high recovery rates. Instead, use of larger diameter ‘P’ core and a drill rig capable of drilling to 1,000 foot depths (or more) could greatly assist in determining the overall vertical extent of the mineralizing system. In order to accomplish the drill-testing, Pringle Bench should be scrapped off much like it was prior to 2011. The veins to be targeted for exploration were clearly visible (Figure 23.3, 23.4).

 

 

Figure 23.3 Ray Medina removes Pringle Bench overburden with hydraulic/air pressure technology, 2009. Photo from QP files.

 

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Figure 23.4 Pringle Bench mineralized surface revealed after removal of overburden. The stibnite-quartz-gold veins and associated fault structures are marked in red. Photo from QP files.

 

Review of previous drill programs should be a priority before new drilling takes place. Most of the core has been stored on the property and appears to be in a useable condition (Figure 23.5)

 

 

Figure 23.5 USAC VP Rodney Blakestad inspects drill core storage facility on Nolan Creek. Photo from QP files.

 

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23.2 Environmental, Permitting and Social.

 

GLM/USAC should build on environmental baseline work initiated by the previous owner. On behalf of the previous owner, SRK Consulting initiated base line studies on the property in 2008, but none have been completed since. GLM should advance baseline studies through investigations of geochemical characterization, meteorological precipitation, hydrological steam run-off (including storm water) prediction and mixing zone potential. An early significant conclusion from past environmental work is that un-weathered materials have a neutral pH; hence an ARD mitigation plan should be aimed at minimizing oxidation of waste rock and ore materials during disposal and in-capsulation of material. Large samples taken underground should be run using acid-base accounting procedures. In similar fashion, selected core of both mineralized vein and wall rock material from representative drill holes along strike and at depth should be split for the expressed purpose of acid-base accounting analyses.

 

To the QP’s knowledge, the previous owner was not engaged in any partnerships or agreements with outside parties. The leading landowner in the area is Doyon Limited (Doyon), a regional native corporation based in Fairbanks. Doyon owns lands immediately west of the Nolan Creek area, which juxtaposes the Gates of the Arctic National Park and Preserve. Doyon is currently in partnership with Wiseman Metals, a subsidiary of MDF-Global, on a district-scale evaluation of copper-precious metal ‘skarn’ and ‘porphyry style copper mineralization north northeast of Coldfoot; sometimes referred to as the ‘Chandalar Copper Belt’.

 

23.3 Geotechnical

 

Further work should expand the bedrock joint study with core-stress testing engineering studies initiated by the previous owner, which examined underground workings on Workman’s Bench. In addition, ASTM tensile stress measurements could be completed at a facility at the University of Alaska-Fairbanks, which can be made available for contracted uses. The QP has used this lab in past years during material site investigations for the Alaska Department of Transportation and Public Facilities. Completion of this work will help confirm what is already known about rock behavior as well as add information about modifications needed for underground extraction techniques and waste disposal planning.

 

23.4 Mineral Processing

 

Additional processing studies will be required to address specific mineral recovery objectives for either future lode or placer mining objectives. It is recommended to consult with University of Alaska geological engineering facilities as well as commercial facilities for additional mineral processing studies.

 

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23.5 Tailings Storage

 

The QP does not recommend work on a tailings facility until information acquired from mineral processing, geotechnical, environmental or infill drilling programs are completed and when a proven reserve has been established During their initial planning for development of the lode antimony-gold assets at Workman’s Bench, the previous owner was considering use of the abandoned frozen drifts created by underground placer mine activities for the disposal of tailings. The QP assumes this plan was canceled after 2011, when the property became dormant.

 

23.6 Mineral Reserves

 

Mineral reserves cannot be established until a fundamentally upgraded, technical economic analysis is completed, incorporating previous studies and future studies. A Mineral Reserve analysis was provided in Chapter 18 of a previous Canadian National Instrument (NI) 43-101 Technical Report issued by the QP for the previous owner of subject claims (Bundtzen, 2011).

 

However, economic assumptions for the 2011 NI 43-101 Mineral Reserve study have significantly changed. Commodity prices have increased, but inflationary costs for fuel, groceries, equipment, labor and many other factors have driven costs significantly upward for operating a mineral development in Nolan Creek valley. Geopolitical issues have also become important considerations. A new mineral reserve study is recommended to be conducted at the discretion of GLM/USAC.

 

 145 

 

 

24.0REFERENCES

 

Armstrong, Edward J., Childress, R., and Currey, Jeff, 1994, Gold reserve, and resource estimates and calculated assumptions for Nolan Creek placer deposits: Unpublished Silverado Gold Mines Ltd document dated October 27, 1994; 34 pages.

 

Berger, B.R., 1986, Descriptive model of low sulfide gold-quartz veins, in, Cox, D.P., and Singer, D.A., eds., Mineral deposit models, U.S. Geological Survey Bulletin 1693, p. 239-243.

 

Berger, V.I., 1993, Descriptive and grade and tonnage model for gold-antimony deposits: U.S. Geological Survey Open File Report 93-194, 22 pages.

 

Brosge, W.P., and Reiser, H.N., 1970, Geochemical reconnaissance in the Wiseman and Chandalar mining districts and adjacent region, southern Brooks Range. U.S. Geological Survey Professional Paper 709, 21 pages.

 

Bundtzen, T.K., 2004, Information Review and Recommendations Gold Properties on Ester Dome and at Eagle Creek, Fairbanks mining district, Alaska; and Nolan Area, Koyukuk mining district, Alaska: Independent Technical Report for Silverado Gold Mines, ltd., Pacific Rim Geological Consulting, Inc., unpublished report, 258 pages

 

Bundtzen, T.K., 2006a, Swede Channel 2005/2006 Development Project, Nolan Creek, Koyukuk District, Northern Alaska: Project review for Silverado Gold Mines ltd., by Pacific Rim Geological Consulting, Inc. 52 pages.

 

Bundtzen, T.K., 2006b, Project update: Completion of 2005-2006 Swede Channel Phase I Underground Development Activities on Nolan Creek, Koyukuk District, Northern Alaska: Project review for Silverado Gold Mines ltd., by Pacific Rim Geological Consulting, Inc. 68 pages.

 

Bundtzen, T.K., 2006c, Project Update: 1) Placer gold production from cleanup of 2006 Swede Channel pay gravels; and 2) Exploration activities of Silverado Gold Mines Ltd. In Koyukuk district: Project review for Silverado Gold Mines ltd., by Pacific Rim Geological Consulting, Inc. 64 pages

 

Bundtzen, 2008a, Review of 2007 Silverado Gold Mines, Ltd., Exploration and Gold production Activities in Koyukuk district, Northern Alaska: Discussion of New Placer Geology Information: Project review for Silverado Gold Mines ltd., by Pacific Rim Geological Consulting, Inc. 80 pages.

 

Bundtzen, T.K., 2008b, Bulk Sampling and Resource Evaluation Program, Workman Bench Gold-Antimony Deposit, Koyukuk District, Northern Alaska: Project Review for Silverado Gold Mines ltd., by Pacific Rim Geological Consulting, Inc. 44 pages.

 

Bundtzen, T.K., 2008c, Estimation of lode and placer mineral resources, Nolan Creek, Wiseman B-1 quadrangle, Koyukuk mining district, Northern Alaska, July 29, 2008: NI 43-101 Technical Report for Silverado Gold Mines, Inc., 133 pages.

 

 146 

 

 

Bundtzen, T.K., 2009, Update of Mineral resources and reserve estimates, and Preliminary Feasibility Study, Workman’s Bench Antimony-Gold Lode Deposit, Nolan Creek, Wiseman B-1 Quadrangle, Koyukuk Mining District, Northern Alaska; June 1, 2009): NI 43-101 report for Silverado Gold Mines, Ltd.

 

Bundtzen, T.K., 2011, Update of Mineral resources and reserve estimates, and Preliminary Feasibility Study, Workman’s Bench Antimony-Gold Lode Deposit, Nolan Creek, Wiseman B-1 Quadrangle, Koyukuk Mining District, Northern Alaska, July 9th, 2011: NI 43-101 report for Silverado Gold Mines, Ltd.

 

Bundtzen, T.K., and Eden, Karsten, 2008, Power Point Presentation on Swede Channel Developments, Wiseman B-1 Quadrangle, Alaska. Given at the Spring Alaska Miners Association Conference, March 25, 2008, Fairbanks Alaska.

 

Childress, R. L., 1995, Gold Reserve and Resource estimates for the Nolan Creek Placer Project: Unpublished Silverado Gold Mines Ltd. document dated January 14, 1995, 38 pages; which includes drill target area plates.

 

Cobb, E.H., 1973, Placer deposits of Alaska: U.S. Geological Survey Bulletin 1374, 213 pages

 

Cook, D.J., 1983, Placer Mining in Alaska: Mineral Industry Research Laboratory Report No. 65, Fairbanks, Alaska, 157 pages.

 

Daily, Arthur, 1962, Valuation of large gold-bearing placers: Engineering and Mining Journal Vol. 163, No. 7, pages 80-88.

 

Day, Stephen, and Jeffress, Bill, 2008, Sampling and Analysis Plan (SAP), Nolan Creek: Unpublished memo report to Silverado Gold Mines, Inc. and Tricon Mining, October 9th, 2008, 5 pages.

 

Dillon, J.T., 1989, Structure and stratigraphy of the southern Brooks Range and northern Koyukuk basin near the Dalton Highway, in, Mull, C.G., and Adams, K.E., eds., Dalton Highway, Yukon River to Prudhoe Bay, Alaska: Alaska Division of Geological and Geophysical Surveys Guidebook #7, p. 157-187.

 

Dillon, J.T., Brosge, W.P., and Dutro, J.T., Jr., 1986, Generalized geologic map of the Wiseman quadrangle, Alaska: U.S. Geological Survey Open File Report 86-219, one sheet @ 1:250,000 plus text.

 

Dillon, J.T., Lamal, K.K., and Huber, J.A., 1989, Gold deposits in the Upper Koyukuk and Chandalar mining districts, in, Mull, C.G., and Adams, K.E., eds., Dalton Highway, Yukon River to Prudhoe Bay: Alaska Division of Geological and Geophysical Surveys Guidebook #7, p. 195-201.

 

 147 

 

 

Dillon, J.T., and Reifenstuhl, R.R., 1990, Geologic map of the Wiseman B-1 quadrangle, south-central Brooks Range, Alaska: Alaska Division of Geological and Geophysical Surveys Professional Report 101, one sheet @ 1:63,360 scale plus text.

 

Doheny, L. C., 1941, Placer valuation in Alaska—Part I: Engineering and Mining Journal Vol. 142, No. 12, December, 1941, pages 47-49.

 

Doheny, L. C., 1942a, Placer valuation in Alaska—Part II: Engineering and Mining Journal Vol. 143, No. 1, January, 1942, pages 43-44.

 

Doheny, L. C., 1942b, Placer valuation in Alaska—Part III: Engineering and Mining Journal Vol. 143, No. 3, March, 1942, pages 48-49.

 

Driscoll, Alan J., Jr., 1987, Geology and economic geology of the Wiseman area, Koyukuk mining district, northern Alaska: Unpublished, confidential technical report by Alaska Mining Company, (ALMINCO), Anchorage, Alaska, 25 pages plus appendices.

 

Ebbley, N. Jr., and Wright, W.S., 1948, Antimony deposits in Alaska: U.S. Bureau of Mines Report of Investigations 4173, p. 37-38.

 

Eden, Karsten, 1999, Geology and gold mineralization of the Nolan area in the Brooks Range, Alaska: Masters thesis presented to Institute of Mineral Geology and Mining Engineering, Technical University of Clausthal, Germany, 147 pages. Several plates @ 1:21,000 scale.

 

Eden, Karsten, 2000, Geology and gold mineralization of the Nolan area in the Brooks Range, Alaska: U.S. Bureau of Land Management Open File Report 78, 140 pages

 

Flanigan, Brian P., 2003a, Discussion of geophysical modeling and interpretation of Solomon’s Shear: Confidential memo to Ed Armstrong, President, Tri-Con Mining Company Inc., August 10, 2003, 5 pages.

 

Flanigan, Brian P., 2003b, Tri-Con Mining Company Inc. Geology Department Monthly report June 1 to June 30, 2003: Unpublished, confidential activity summary for Tri-Con Mining dated July 2, 2003, 2 pages.

 

Flanigan, Brian P., 2003c, Results of Excavator sampling Program: Unpublished, confidential activity summary for Tri-Con Mining, Inc. dated July 30, 2003, 1 page.

 

Flanigan, Brian P., 2003d, Tri-Con Mining Company Inc. Geology Department Monthly report July 2 to June 30, 2003: Unpublished, confidential activity summary for Tri-Con Mining Inc. dated July 31, 2003, 2 pages.

 

Flanigan, Brian P. 2004, Comparison of Nolan Creek placer mining recoveries and drill-indicated resource estimates—an attempt to improve future placer gold resources estimates: Unpublished, confidential activity summary for Tri-Con Mining, Inc. dated October 25, 2004, 10 pages.

 

 148 

 

 

Flanigan, Brian P., Glassburn, Fawn, Kirkham, Russell, and Lessard, Richard, 2003, Solomon’s Shear and other potential lode targets at Nolan Creek: Unpublished, confidential activity summary for Tri-Con Mining, Inc. dated August 3, 2003, 7 pages with plates.

 

Gacetta, J.D., and Church, S.E., 1989, Lead isotope data base for sulfide occurrences in Alaska: U.S. Geological Survey Open File Report 89-688, 59 pages.

 

Hamilton, T.D., 1979, Surficial geologic map of the Wiseman quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Map MF-1122, scale 1:250,000

 

Hamilton, T.D., 1986, Late Cenozoic glaciation of the central Brooks Range, Alaska, in, Hamilton, T.D., Reed, K.M., and Thorson, R.M., eds., Glaciation in Alaska—the Geologic Record: Alaska Geological Society Special Research Volume, pages 9-50.

 

Hodgson, C.J., 1993, Mesothermal lode gold deposits, in, Kirkham, R.V., Sinclair, W.D., Thorpe, R.I., and Duke, J.M., eds., Mineral deposit modeling: Geological Association of Canada Special Paper 40, p. 635-678.

 

Ineson, P.R., 1989, Introduction to Practical Microscopy: Longman Scientific Technical, John Wiley and Sons New York, 181 pages

 

Joesting, H.R., 1942, Strategic Minerals in Interior Alaska: Alaska Territorial Department of Mines pamphlet #2, 46 pages.

 

Killeen, P.L., 1942, Antimony deposits near Wiseman, Alaska: U.S. Geological Survey War Pamphlet, 3 pages.

 

Knight, J.L., and McTaggart, K.C., 1989, Lode and Placer gold of the Coquihalla and Wells areas, Cariboo district, British Columbia, Canada: Exploration in British Columbia-1989: British Columbia geological Survey p. 105-117.

 

Kurtak, J.M., Klieforth, R.F., Clark, J.M., and Maclean, E.A., 2002, Mineral investigations in the Koyukuk mining district, northern Alaska: Volume II—Introductory Text and Summary of mines, prospects, and mineral occurrences in the Melozitna, Survey Pass, Tanana, and Wiseman quadrangles, Alaska: U.S. Department of Interior, Bureau of Land Management BLM-Alaska Technical Report 50, 450 pages

 

Laznicka, Peter, 1985, Empirical Metallogeny—Depositional Environments, Lithologic Associations, and Metallic Ores: Elsevier Publishers, Amsterdam, p. 1,350 pages.

 

Maddren, A.G., 1910, The Koyukuk-Chandalar region,: U.S. Geological Survey Bulletin 442-G, pages 284-315.

 

Maddren, A.G., 1913, The Koyukuk-Chandalar region, Alaska: U.S. Geological Survey Bulletin 532, 119 pages.

 

 149 

 

 

Moiser, E.L., and Lewis, J.S., 1986, Analytical results, geochemical signatures, and sample locality map of lode gold, placer gold, and heavy mineral concentrates from the Koyukuk-Chandalar mining district, Alaska: U.S. Geological Survey Open File Report 86-345, 173 pages.

 

Moore, T.E., Wallace, W.K., Bird, K.J., Karl, S.M., Mull, C.G., and Dillon, J.T., 1994, Geology of northern Alaska, in, Plafker, George, and Berg, H.C., eds., The Geology of Alaska: Boulder, Colorado, Geological Society of America, the Geology of North America, Volume G-1, p. 49-140.

 

Mull, C.G., 1989, Chapter 6—Summary of structural style and history of the Brooks Range deformation, in, Mull, C.G., and Adams, K.E., eds., Dalton Highway, Yukon River to Prudhoe Bay, Alaska: Alaska Division of Geological and Geophysical Surveys Guidebook #7, p. 47-56.

 

Neely, Burr, 2007, Cultural Resource Survey of proposed Exploration Drilling and Mining Locations in the Vicinity of Nolan, Alaska: Unpublished report prepared for Silverado Gold Mines, Inc. by Northern Land Use Research, Inc., 22 pages.

 

Peters, W.C., 1978, Exploration and Mining Geology: John Wiley and Sons, New York, 695 pages.

 

Proffett, J.M., 1982, Preliminary report on the geology of the Hammond River-Vermont Creek gold placer area, Wiseman district, Alaska: Unpublished Confidential Report by J.M Proffett and Associates, Inc., Eagle River, Alaska, 15 pages.

 

Reed, Irving McKinney, 1938, Upper Koyukuk Region, Alaska: Alaska Territorial Department of Mines Miscellaneous Report 194-7, 169 pages.

 

Reger, R.D., and Bundtzen, T.K., 1990, Multiple glaciation and gold placer formation, Valdez Creek valley, western Clearwater Mountains, Alaska: Alaska Division of Geological and Geophysical Surveys Professional Report 107, 29 pages.

 

Schultz, C.P., 2008a, Report #1: Flotation and gravity results, Workman’s Bench Stibnite-Gold Bulk Sample, Wiseman District, Alaska: Unpublished report by Hazen Research, Inc., for Pacific Rim Geological Consulting, Inc. 10 pages.

 

Schultz, C.P., 2008b, Report #2: Mineralogical examination Workman’s Bench Stibnite-Gold Bulk Sample, Wiseman District, Alaska: Unpublished report by Hazen Research, Inc., for Pacific Rim Geological Consulting, Inc. 18 pages.

 

Staff, 2003, Standards and Guidelines for Valuation of Mineral properties: Special Committee of the CIM Metallurgy and Petroleum Valuation of Mineral properties: 33 pages.

 

Staff, 2004, Estimation of Mineral Resources and Mineral Reserves Best Practice Guidelines: CIM Council, 35 pages.

 

Staff, 2005a, National Instrument 43-101 Standards of Disclosure for Mineral projects, Form 43-101 and Companion Policy 43-101 CP: 29 pages.

 

 150 

 

 

Staff, 2005b, Form 43-101F1-Contents of the Technical report: 9 pages.

 

Silverado Staff (Eden), 2008a, Workman’s bench Drilling and Underground Exploration Program 2007-2008, Horizontal Plan View Map, October 21, 2008; one sheet at scale 1:1,000

 

Silverado Staff (Eden), 2008b, Workman’s bench Drilling and Underground Exploration Program 2007-2008, Vertical Section 1, S1-S1’, October 21, 2008 scale: one inch=50 feet

 

Silverado Staff (Eden), 2008c, Workman’s bench Drilling and Underground Exploration Program 2007-2008, Vertical Section 2, S2-S2’, scale: October 21, 2008, scale one inch=50 feet

 

Silverado Staff (Eden), 2008d, Workman’s bench Drilling and Underground Exploration Program 2007-2008, Vertical section 3, S3-S3’, October 21, 2008, scale: one inch=50 feet

 

Silverado Staff (Eden), 2008e, Workman’s bench Drilling and Underground Exploration Program 2007-2008, Vertical section 4, S4-S4’, October 21, 2008, scale: one inch=50 feet

 

Silverado Staff (Eden), 2008e, Workman’s bench Drilling and Underground Exploration Program 2007-2008, Vertical section 5, S5-S5’, scale: one inch=50 feet

 

Silverado Staff (Eden), 2008f, Workman’s bench Drilling and Underground Exploration Program 2007-2008, Vertical section 1, A-A’, May 2, 2008 scale: one inch=50 feet

 

Silverado Staff (Eden), 2008g, Workman’s bench Drilling and Underground Exploration Program 2007-2008, Vertical section 2, B-B’, June 6, 2008 scale: one inch=50 feet

 

Silverado Staff (Eden), 2008h, Workman’s bench Drilling and Underground Exploration Program 2007-2008, Vertical section 3, C-C’, May 2, 2008, scale: one inch=50 feet

 

Silverado Staff (Eden), 2008i, Workman’s bench Drilling and Underground Exploration Program 2007-2008, Vertical section 4, D-D’, May 2, 2008, scale: one inch=50 feet

 

Silverado Staff (Eden), 2008j, Workman’s bench Drilling and Underground Exploration Program 2007-2008, Vertical section 5, E-E’, May 2, 2008, scale: one inch=50 feet

 

Silverado Staff (Eden), 2008k, Workman’s bench Drilling and Underground Exploration Program 2007-2008, Vertical section 6, F-F’, May 2, 2008, scale: one inch=50 feet

 

Silverado Staff (Eden), 2008l, Workman’s bench Drilling and Underground Exploration Program 2007-2008, Vertical section 7, H-H’, June 6, 2008, scale: one inch=50 feet

 

Silverado Staff (Eden), 2008m, Pringle bench Drilling and Underground Exploration Program 2007, Vertical section 7, H-H’, February 8, 2008, scale: one inch=100 feet

 

Stone, J.G., Dunn, P.G., and Sheahan, P., 1998, Ore Reserve Estimates in the Real World: Society of Economic Geologists Special Publication Number 3, Second Edition, Citizens Printing Company, Littleton, Colorado, 160 pages

 

 151 

 

 

Swainbank, R.C., Bundtzen, T.K., Clough, A.H., Henning, M.W., and Hansen, E.W., 1995, Alaska’s Mineral Industry-1994, Alaska Division of Geological and Geophysical Surveys Special Report 49, 77 pages.

 

Tchapko, Vitali, 1995, Placer and hardrock gold deposits in the Central Kolyma area, Magadan region, Northeast Russia, in, Bundtzen, T.K., Fonseca, A.L., and Mann, Roberta, eds., Geology and Mineral Deposits of the Russian Far east: Alaska Miners Association Special Symposium Volume 1, p. 29-35.

 

Turner, D.L., Forbes, R.B., and Dillon, J.T., 1979, K-Ar geochronology of the southern Brooks Range, Alaska: Canadian Journal of Earth Sciences, vol. 16, no. 9, p. 1789-1804.

 

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25.0RELIANCE ON INFORMATION PROVIDED BY REGISTRANT

 

The Registrant (GLM/USAC) provided detailed information concerning their ownership of the thirty-six (36) federal lode and placer claims in the Nolan Creek Valley that were acquired through a Trustee’s public auction on January, 30, 2026. The Registrant also provided details of the forty-eight (48) Alaska State Mining Claims acquired during the fall of 2026.

 

In June, 2026, the QP accompanied USCA’s Vice President of the company’s Mining Division, Rodney Blakestad, on a two-day examination of the company’s properties in Nolan Creek valley.

 

Remaining information disclosed in this Technical Report is the responsibility of the QC.

 

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APPENDIX I: Summary of Relevant Sample Data Used in Calculation of all Categories of Sb and Au Resources from Workman’s Bench That are Described in this Technical Report; Including Relevant Trace Element Data

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb
(%)
Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
1

08SH02

(08SS47)

  West of ‘A’ Zone 160.0 160.6 0.6 0.50 23.30 0.031 2520 0.30 24.0 Quartz-Stibnite vein about  2.0 inches wide (visual by QP)
2

08SH02

(08SS51)

  ‘A’  Zone 186.5 187.5 1.0 0.70 37.92 0.091 15.0 0.72 <0.2 5.5 inch (true thickness) quartz-stibnite vein with semi-massive stibnite also in remaining zone
3

08SH02

(08SS52)

  ‘B’ Zone 193.0 193.8 0.8 0.58 7.11 0.190 3260 0.59 10.3 2 parallel quartz stibnite veins about 4.5 inches  true width with sch
4

08SH03

(08SS67-68)

  West of ‘A’ Zone 41.4 42.5 1.1 1.00 37.91 0.301 0.8 0.45 1.4 Sheared stibnite-quartz zone; about 1.0 foot true thickness; textures
5

Including

(08SS67)

  West of ‘A’ Zone 41.4 42.0 0.6 0.45 42.05 0.420 <0.01 1.38 <0.2 Sheared nearly massive stibnite; about 0.45 foot true
6

08SH03

(08SS80)

  ‘A’ Zone 115.9 117.0 1.1 0.91 26.73 0.410 139 0.40 5.1 Several closely spaced, quartz-stibnite veins
7

08SH03

(08SS81)

  Hanging wall ‘A’ zone 117.0 117.5 0.5 0.41 0.07 0.360 8560 1.26 20.6 Hanging wall trace stibnite in quartz
8

08SH03

(08SS82)

  ‘B’ Zone 130.3 130.9 0.6 0.49 13.65 0.130 188 0.41 17.6 Stibnite-quartz vein zone with siderite
9

08SH03

(08SS88)

  Zone not designated 161.5 162.0 0.5 0.41 0.01 0.140 >10000 0.37 9.8 Arsenopyrite-rich quartz vein with trace of stibnite
10

08SH03

(08SS93)

  ‘C’ Zone 195.5 196.1 0.6 0.41 0.70 0.130 9930 0.15 56.1 Quartz-stibnite zone; 10 % Sb2S3 (QP inspection)
11

08SH01B

(08SS13)

  ‘West’ Zone 33.8 35.2 1.4 0.92 53.44 0.280 <0.1 0.30 5.0 Massive stibnite with only minor quartz
12

08SH01B

(08SS14)

  ‘A’ Zone’ Footwall 95.7 96.4 0.7 0.42 28.69 0.230 110 0.36 1.2 5 inch thick, vertical quartz-stibnite 3 inches of massive stibnite
13

08SH01B

(08SS15)

  Main ‘A’ Zone 98.2 101.3 3.0 2.49 18.43 0.130 248 0.28 1.3 quartz-stibnite veins; with locally massive stibnite over 3.0 feet

 

 

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb
(%)
Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
14

08SH01B

(08SS18)

  Hanging Wall ‘A’ Zone 108.0 108.5 0.5 0.41 26.05 0.020 5.9 0.21 1.1 2.0 inch massive stibnite with quartz
15

08SH01B

(08SS23, 08SR52, 08SS24)

  ‘B’ Zone 139.0 142.2 3.2 2.65 12.22 0.015

300

535

100

3.67

0.37

0.30

1.2

19.2

0.7

Massive stibnite veins with quartz;  Sb grade over 3.2 feet
16

Including

(08SS24)

  ‘B’ zone 141.6 142.2 0.6 0.49 19.87 0.010 100.5 0.3 0.7 Thickest stibnite-quartz vein (4 inches)
17

08SH01B

(08SS33)

  ‘C’ Zone 198.7 199.2 0.5 0.41 17.86 0.210 610 0.16 0.9 2.0 inch semi-massive stibnite vein in quartz gangue.
18

08SH15

(08SS192)

  ‘West Zone 84.0 85.7 1.7 1.10 10.55 0.141 1,220 0.57 0.7 Stibnite-quartz zone with slickensides
19

08SH15

(08SS196-197)

  ‘A’ Zone 113.0 117.0 4.0 2.58 23.06 0.028 527 0.87 <0.02 Semi-massive stibnite over wide zone
20

08SH15

(08SS206-208

  ‘B’ Zone 182.5 190.7 8.2 4.80 6.25 0.092 2836 0.31 <0.02 Diffuse zone of stibnite-bearing stockwork
21

08SH15

(08SS209)

  ‘C’ Zone ? 194.6 196.2 1.6 0.94 0.89 0.050 7620 0.29 18.3 Weak zone with thin stibnite veins
22

08SH14

(08SS211)

  ‘West’  Zone 56.5 57.0 0.5 0.41 4.02 0.008 742 0.18 2.0 1.0 inch quartz-stibnite-carbonate vein
23

08SH14

(08SS212)

  Zone not Designated 88.3 92.0 3.7 3.07 0.27 0.180 >10000 0.23 6.9 Arsenopyrite-rich quartz vein zone  
24

08SH14

(08SS216)

  ‘A’ Zone 108.5 109.2 0.7 0.60 0.06 0.010 3000 0.31 9.0 Notes from 09/27/08 visual by QP indicate 40% stibnite in a zone 0.6 feet wide true thickness
25

08SH14

(08SS218)

  ‘B’ Zone 121.0 122.0 1.0 0.83 0.25 0.260 4270 0.27 24.6 Disseminated stibnite ion quartz vein vertical orientation (QP estimate)
26

08SH14

(08SS226)

  ‘C’ Zone 179.2 179.9 0.7 0.58 1.75 0.040 4320 0.44 81.2 Vuggy Quartz vein with stibnite (30%) of total.
27

08SH14

(08SS227)

  Possible ‘C’ Zone Extension 183.8 184.3 0.6 0.50 0.02 0.190 >10000 0.29 41.5 Arsenopyrite-rich quartz vein about 3 inches thick
28

08SH17

(08SS240-241)

 

‘A’ Zone 285.0 288.3 3.3 1.91 0.00 0.160 8080 0.30 4.6 Wide zone of stibnite=bearing quartz veins (3); stockwork type zone

 

 

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb
(%)
Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
29

Including

(08SS241)

 

  ‘A’ Zone 287.6 288.3 0.9 0.52 4.63 0.230 >10000 0.24 5.6 4 inch zone of stibnite-quartz vein; 25 percent Sb2S3 (QP estimate)
30

08SH17

(08SS242)

  ‘B’ Zone 299.3 299.9 0.6 0.35 13.63 0.200 28.5 1.02  <0.2 0.75 inch of massive stibnite on quartz vein
31

08SH17

(08SS243)

  ‘C’ Zone 311.8 312.9 1.1 0.64 0.01 0.120 >10000 0.30 8.9 Visual by QP: contains 10% Sb2S3—not in assay results
32

08SH16

(08SS228)

  West of ‘west’ Zone 156.0 157.0 1.0 0.83 0.93 0.092 9340 0.37 12.8 Quartz-stibnite vein about 4 inches thick
33

08SH16

(08SS229)

  ‘West’ Zone 197.0 198.0 1.0 0.83 1.11 0.020 2370 0.28 13.7 Quartz-stibnite vein  4 inches thick
34

08SH16

(08SS231)

  ‘A’ Zone 233.7 234.7 1.0 0.83 1.64 0.053 7910 0.17 21.2 Quartz vein with 5-8% stibnite as disseminations; vein is 6 inches thick
35

08SH16

(08SS235)

  ‘B’ Zone 309.5 310.5 1.0 0.83 0.00 0.390 1000 0.28 9.6 Quartz vein with abundant arsenopyrite in vein selvages
36 07SH01
    07SS06)
  ‘A’ Zone Main Vein 201.00 202.00 1.0 0.83 9.37 0.211 2250 NA NA Semi-Massive stibnite with quartz stockwork
37 07SH01
(07SS08-12)
  ‘B’ Zone 223.50 242.50 19.00 15.77 3.24 0.091 3020 NA NA Quartz –stibnite vein stockwork zone in four distinct zones.
38 Including
(07SS10)
  ‘B’ Zone 237.40 242.50 6.00 4.81 8.81 0.191 1250 NA NA Two main stibnite-quartz stockwork; each 18 inches thick
39 Including
(267392)
  ‘B’ Zone 238.40 238.90 0.50 0.41 28.69 0.023 NA NA NA Massive stibnite in core
40 Trench (W399)   ‘A’ Zone Main Vein NA NA 1.20 1.20 50.63 0.240 NA NA  NA Furthest trench sample on surface
41

07SH18

(07SS194-97; SR378-79)

  ‘West’ Zone 46.5 53.5 7.0 3.26 1.24 0.029 325 NA NA Stibnite bearing stockwork zone; core contains stibnite lenses
42

Including

(07SR379)

  ‘West’ Zone 52.7 53.5 0.8 0.67 7.94 0.058 160 NA NA Stibnite bearing stockwork zone; core
43

08SH16

(08SS228)

  ‘West’ Zone 156.0 157.0 1.0 0.83 0.93 0.090 9340 0.37 12.8 Quartz carbonate vein with stibnite grains and arsenopyrite
44

08SH16

(08SS229)

  ‘A’ Zone 197.0 198.0 1.0 0.83 1.11 0.020 2370 0.28 13.7 Disseminated stibnite in 6 inch quartz vein

 

 

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Sb
(%)
Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
45

08SH32

(08SS375-379)

  ‘West’ Zone 171.5 177.5 6.0 6.23 0.085  See below See below See below Wide zone (true width=3.2 feet) of quartz-stibnite-carbonate veinlet zone.
46

Including

(08SS375-376)

  West Zone 171.5 172.8 1.6 14.63 0.110  See below See below See below Wide zone of quartz-stibnite veins
47

Including

(08SS375)

  ‘West Zone 172.8 173.3 0.5 21.24 0.180 578 1.57 5.1 Semi-massive stibnite vein zone
48

Including

(08SS379)

   West Zone 176.0 177.5 1.5 12.62 0.060 337 0.46 5.1 Three flecks of gold noted during logging not reflected in assays
49

08SH32

(08SS380)

  ‘A’ Zone hanging wall 177.5 179.5 2.0 0.04 0.010 320 0.26 46.7 Visual by QP: 20% stibnite and 80% quartz;  Sb2S3 not reflected in assays
50

08SH32

(08SS385)

  ‘A’ Zone Hanging Wall 186.5 188.0 1.5 1.22 0.275 1490 0.21 10.3 Quartz carbonate vein with stibnite grains and trace arsenopyrite
51

08SH32

(08SS292-394

  ‘A’ Zone 203.7 209.5 5.8 8.20 0.180

>10000

18.2

7600

0.28

7.22

0.26

3.9

0.2

5.6

Wide zone (true thickness=2.9 feet) of stibnite-bearing quartz vein mineralization
52

Including

(08SS393)

  ‘A’ Zone 205.7 206.6 0.9 38.74 1.130 18.2 7.22 0.2

Strong zone of stibnite-quartz mineralization

 

53

08SH32

(08SS396)

  ‘B’ Zone 212.0 213.5 1.5 0.09 0.030 5250 0.23 13.5 5% percent Sb2S3 in large quartz zone
54

08SH33

(08SS411)

  ‘West ’ Zone 162.0 167.0 5.0 2.70 0.040 2140 0.59 23.9 Wide stockwork vein zone contains disseminated Sb2S3
55

08SH33

(08SS426-427)

  ‘A’ Zone 242.0 243.2 1.2 14.74 0.030 68.5 0.29 1.2 Wide zone (true thickness=1.00 feet) of stibnite-quartz mineralization
56

Including

(08SS426)

  ‘A’ Zone 242.0 242.6 0.6 19.68 0.040 68.5 0.29 1.2 Disseminated to locally massive stibnite in quartz vein
57   203797 ‘A’ Zone 166.20 167.70 1.50 0.36 0.036 67 ND 275 NW fracture adjacent to ‘A’ Zone
58

08SH13

(08SS177)

  Zone not designated 17.8 18.3 0.5 13.16 0.025 20.4 2.1 <0.2 Quartz-stibnite zone with locally 50% Sb2S3

 

 

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb
(%)
Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
59

08SH13

(08SS179)

  ‘West’ Zone? 121.3 126.7 5.4 3.40 1.99 0.138 >10000 0.31 11.8 Significant wide zone (true thickness=3.4 feet)  with Sb+Au
60

08SH13

(08SS182)

  ‘A’ Zone 187.5 188.8 1.3 1.00 22.15 0.061 308 0.17 1.3 Thick quartz-stibnite zone stibnite Lense
61

08SH13

(08SS184-85)

  ‘B’ Zone 208.4 212.2 3.8

 

2.43

 

6.21 0.061

2050

4410

0.53

0.19

14.0

18.4

Wide zone of stockwork stibnite-quartz vein
62

Including

(08SS184)

  ‘B’ Zone 208.4 209.9 1.5 0.96 6.97 0.26 2050 0.53 14.0 Stibnite lobes in wide
63

08SH13

(08SS188)

  ‘C’ Zone 250.6 252.6 2.0 1.28 0.07 0.050 5760 0.12 24.5 Quartz carbonate veins (3) with isolated stibnite
64   203405 ‘West’ Zone 138.0 139.5 1.5 1.50 41.20 0.110 NA NA NA Semi-massive stibnite in quartz gangue
65   203789 ‘West’ Zone 40.5 42.0 1.5 1.50 22.48 0.556 4152 NA 141 In wall of connecting drift; true thickness
66   203808

A Zone

 

172.0 173.50 1.50 1.50 43.64 1.19 52 NA <0.2 Nearly massive stibnite with quartz
67   WBUG3 S1 ‘A’ Zone 172.9 173.32 0.42 0.42 52.10 0.676 0.5 NA 1.1 Massive stibnite core
68   WBUG3 S2 ‘A’ Zone 172.9 173.32 0.42 0.42 58.89 0.329 <0.1 NA 0.5 Massive stibnite core
69   WBUGG3 S3 ‘A’ Zone 172.9 173.32 0.42 0.42 60.90 0.031 3010 NA 18.2 Massive stibnite core
70   WBUGG3 S4 ‘A’ Zone 172.9 173.32 0.42 0.42 55.71 0.451 1.3 NA 0.4 Massive stibnite core
71   WBUGG3 S5 ‘A’ Zone 172.9 173.32 0.42 0.42 11.10 0.444 2520 NA 4.5 Massive stibnite core
72   WBUG8- S2 ‘A’ Zone 182.9 183.32 0.42 0.42 58.76 0.145 0.7 NA 0.2 Massive stibnite core
73   203802 ‘A’ Zone 114.0 116.50 2.50 2.50 37.78 0.076 68 NA <0.2 ‘A’ Zone in south drift
74   203810 ‘B’ Zone 183.0 183.5 0.5 0.50 41.00 0.696 66 NA <0.2 Nearly massive stibnite with quartz gangue; south drift
75   203791 ‘B’ Zone 199.1 200.35 0.50 0.50 39.73 0.362 1163 NA <0.2 Nearly massive stibnite with hanging wall; north drift
76   WBUGG8 S1 ‘A’ Zone NA NA 0.42 0.42 57.52 0.359 1 NA <0.2 Massive stibnite
77   WBUG5 S2 ‘B’ Zone 199.8 200.22 0.42 0.42 50.04 1.040 0.7 NA <0.2 Massive stibnite in vein core
78   WBUG8 S3 ‘B’ Zone NA NA 0.42 0.42 58.02 0.696 2.5 NA <0.2 Massive stibnite core
79   203795 ‘A’ Zone 40.00 41.50 1.50 1.50 40.35 0.357 52 NA <0.2 Semi-Massive stibnite-quartz vein
80   203488 ‘B’ Zone 122.00 123.2.0 0.65 0.65 18.05 0.039 NA NA NA Semi-Massive stibnite-quartz vein
81   WBUG9 S1 ‘B’ Zone 124.00 124.42 0.42 0.42 33.92 0.084 18.8 NA <0.2 Semi-Massive stibnite-quartz vein

 

 

 

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
82   WBUGG9 S2 ‘B’ Zone NA NA 0.42 0.42 17.34 0.130 459 NA 0.4 Semi-Massive stibnite
83   WBUGG5 S3 ‘C’ Zone NA NA 0.42 0.42 13.38 0.031 2530 NA 3.8 Semi-Massive stibnite
84   WBUGG9 S4 ‘B’ Zone NA NA 0.50 0.50 7.34 0.513 5590 NA 2.3 Semi-massive stibnite
85   203804 B Zone Vein 218.0 218.45 0.45 0.45 56.88 0.033 NA NA NA Massive stibnite vein
86   203450 A Zone   68.00 69.50 1.50 1.50 57.02 0.012 NA NA NA Massive Stibnite vein
87   203409 B Zone  Vein 172.00 172.45 0.45 0.40 51.41 0.372 NA NA NA Massive Stibnite
88   Trench J (52) A Zone Main Vein on Surface 151.0 159.2 8.2 8.20 30.30 0.140 NA NA NA Semi-massive stibnite
89   Trench J A Zone Main Vein  on Surface 159.2 167.4 8.2 8.20 1.72 0.220 NA NA NA Disseminated stibnite
90   Trench J   Surface B Zone 167.4 175.6 8.2 8.20 11.70 0.037 NA NA NA Semi-massive stibnite
91   267397 Main ‘A’ Vein; surface 171.4 172.25 0.85 0.85 36.51 0.793 67 NA 275 Massive Stibnite
92   Trench J   Surface B Zone 175.6 183.8 8.2 8.20 29.30 0.120 NA NA NA Semi-massive stibnite
93   Trench J Zone between A and B Veins 183.80 192.00 8.2 8.20 2.56 0.016 NA NA NA Disseminated stibnite
94   Trench J ‘B’ Zone 192.00 201.80 9.8 9.80 14.05 0.016 NA NA NA Semi-massive stibnite
95   Trench J West Vein on Surface 35.0 43.2 8.2 8.20 1.70 0.040 NA NA NA West Vein as seen in 2008 drill hole
96

08SH18

(08SS250)

  Interpreted ‘West’ Vein 276.0 277.0 1.0 0.64 0.01 0.037 NA NA NA Arsenopyrite-rich quartz vein
97

08SH18

(08SS254)

  ‘A’ Zone 313.0 315.0 2.0 1.27 0.15 0.102 3,420 0.23 6.5 Footwall zone with arsenopyrite
98

08SH18

(08SS255

  ‘A’ Zone 315.0 316.8 1.8 1.15 27.65 2.88 27.1 3.21 0.5 High grade quartz-stibnite vein
99   WBUG1-S2 ‘A’ Zone 138.80 139.22 0.42 0.42 64.34 0.030 NA NA NA

Massive stibnite near hanging wall

South drift

100 07SH15
(07SR193
  ‘West’ Zone’ 127.0 130.5 3.5 2.59 0.25 0.035 1,000 268 11.2 Disseminated stibnite in quartz
101 07SH15
(07SS173-175;
  ‘A’ Zone 192.0 197.8 5.80 4.29 4.07 0.104 912 NA 3.6 Disseminated stibnite
102 07SH15
(07SR217-220)
  ‘B’ Zone 242.00 247.80 5.80 3.95 3.45 0.060 982 NA 5.5 Quartz stibnite stockwork vein zone  

 

 

 

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
103 Including
(07SS179)
  ‘B’ Zone 245.3 245.8 0.60 0.49 34.51 0.554 138 NA 3.1 Semi-Massive stibnite with  quartz gangue
104 07SH15
(07SS180)
  ‘C’ Zone 253.3 253.8 0.5 0.41 9.69 0.056 922 NA 2.0 Disseminated stibnite in quartz
105

08SH12B

(08SS166)

  ‘West’ Zone 180.4 180.9 0.5

0.41

 

 

6.94 0.050 1,060  0.36  0.3 Quartz vein 8 inches thick with stibnite
106

08SH12B

(08SS168-170)

  ‘A’ Zone 204.1 209.0 4.9 3.62 6.99 0.107 1,936 0.36 1.0 Stibnite-bearing quartz vein and hanging wall
107

Including

(08SS168)

  ‘A’ Zone 204.1 205.0 0.90 0.72 7.05  0.05  1,345 0.35 1.5 Base of hanging wall
108

Including

(08SS170)

  ‘A’ Zone 208.1 209.0 0.9 0.72 20.97 0.220 10.8  0.47 <0.2 Semi-massive stibnite vein with euhedral quartz gangue
109

08SH12B

(08SS173)

  ‘B’ Zone 236.3 236.8 0.5 0.40 0.40 0.030  2930 0.19  69.1 Thin, 3 inch thick quartz vein with stibnite grains
110

08SH12B

(08SS175)

  ‘C’ Zone 250.0 251.7 1.7 1.36 0.01 0.040 2720 0.31 10.4 Quartz veon zone (true thickness=1.2 feet) trace stibnite.
111

08SH12B

(08SS176)

  ‘West Zone’ 179.8 180.4 0.6 0.41 0.01 0.029 4130 0.13 2.3 Veinlet zone in footwall of ‘West Zone’ contains arsenopyrite and trace stibnite
112

07SH14

(07SS157-159;SR117)

  ‘West’ Zone 161.6 172.0 10.4 7.80 4.99 0.056 2470 NA NA Stibnite stockwork vein zone
113

Including

(07SS159)

  ‘West’ Zone 166.2 167.6 1.4 1.05 29.23 0.224 201 NA NA Semi-Massive stibnite lense
114

07SH14

(07SS166)

 

‘A’ Zone

 

208.6 209.6 1.0 0.80 6.42 0.242 7000 NA NA Stibnite stockwork vein zone
115

Including

(267394)

  ‘A’  Zone 209.0 209.15 0.15 0.10 51.42 1.610 1100 NA NA Thin massive stibnite lense
116

07SH14

(07SS168)

 

‘B’ Zone

 

240.0 240.5 0.5 0.40 8.81 0.160 621 NA NA Thin stibnite stockwork vein zone
117

07SH14

(07SS169)

  ‘C’ Zone 257.7 258.7 1.0 0.8 0.152 0.071 5,580 NA ND Disseminated Sb and As
118

08SH11

(08SS155)

  ‘West’ Zone 184.7 185.4 0.9 0.58 3.55 0.073 2670 0.17 2.4 Stibnite bearing quartz vein about 5 inches
119

08SH11

(08SS156-158)

  ‘A’ Zone 193.0 197.0 4.0 2.56 8.12 0.184

6700

1710

0.22

0.21

 

7.5

3.7

Stibnite bearing quartz vein about 2.5 feet

 

 

 

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
120

Including

(08SS157)

  Footwall of ‘A’ Zone 193.6 194.5 0.9 0.58 10.02 0.120 1710 0.21 3.7 Footwall zone of ‘A’ Vein is part of system below, separated by 1.0 feet of wall rock. Abundant AsPy
121

Including

(08SS158)

  ‘A’ Zone 196.2 197.0 0.8

0.51

10.36 0.330 389 0.13 0.7 Main ‘A’ zone characterized by sheared fine-grained stibnite (QP)
122

08SH11

(08SS159)

  ‘B’ Zone 225.3 226.1 0.8 0.51 11.20 0.700 984 2.01 1.6 Quartz-stibnite zone with 2.0 inch massive stibnite vein; As sulfides abundant in margins
123

08SH11

(08SS160)

  ‘C’ Zone? 275.8 276.8 1.0 0.65 11.36 0.040 7790 0.11 6.5 Quartz-stibnite vein with 25% stibnite.
124

07SH13

(07SS140)

  ‘West’ Vein 38.5 39.3 0.8 0.66 2.34 0.074 >10000 NA 7.8 Thin quartz stibnite vein 3 inches thick
125

07SH13

(07SS144)

  ‘A’ Zone 133.0 134.5 1.5 1.24 0.05 0.230 3740 NA 4.2 True thickness of quartz vein is 1.2 feet stibnite vein (log notes)
126

07SH13

(07SS146-48)

  ‘B’ Zone 196.0 200.0 4.0 2.80 3.37 0.040

1315

7170

172

NA 5.0 Stibnite bearing stockwork zone; core contains stibnite
127

Including

(07SS146)

  ‘B’ Zone 196.0 196.5 0.5 0.40 7.79 0.031 1315 NA 19.6 Stibnite bearing stockwork zone; core contains stibnite
128

Including

(07SS148)

  ‘B’ Zone 199.5 200.0 0.5 0.40 19.09 0.100 172 NA <0.2 Stibnite bearing stockwork
129

08SH22

(08SS308)

 

  West of ‘West’ Zone 204.5 205.5 1.0 0.64 0.72 0.016 2100 0.07 14.6 Stockwork vein with stibnite xtals
130

08SH22

(08SS309)

  ‘West’ Zone 215.0 222.0 7.0 4.00 0.46 0.017 636 0.09 10.0 Thick zone of quartz vein stockwork with six vein zones
131

08SH22

(08SS312-313)

  ‘A’ Zone 226.0 227.5 1.5 1.20 13.10 0.080 1705 0.12 1.4 Quartz-stibnite mineralization true thickness=1.2 feet
132

Including

(08SS313)

  ‘A’ Zone 227.5 228.0 0.5 0.35 18.97 0.120 1110 0.14 0.6 Semi-massive stibnite core of vein
133

08SH22

(08SS318)

  ‘B’ Zone 252.8 253.3 0.5 0.35 0.02 0.140 >10000 0.18 20.8 Quartz-carbonate vein zone with tr stibnite.

 

 

 

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
134

08SH24

(08SS333)

  ‘West’ Zone 99.0 100.0 1.0 0.80 19.58 0.090 703 1.73 5.7  75 degrees steep SE
135

08SH24

(08SS335)

   ‘A’ Zone 118.7 119.4 0.7 0.56 11.05 0.060 1285 0.85 11.8 Quartz-stibnite zone with massive stibnite lenses 2.5 inches thick
136

08SH24

(08SS341-342)

  ‘B’ Zone 204.1 205.5 1.4

1.12

 

 

15.13 0.250 >10000 0.32 8.9 Thick zone of quartz-stibnite mineralization; vertical true thickness=1.1  feet
137

Including

(08SS342)

  ‘B’ Zone 204.9 205.5 0.6 0.48 28.72 0.340 37.3 0.68 0.3 Semi-massive stibnite vein about 4 inches thick
138

08SH24

(08SS343)

  ‘C’ Zone 265.0 267.0 2.0 1.10 0.064 0.110 >10000 0.15 57.1 Thick quartz vein zone (true thickness=1.1 feet) with stibnite grains.
139

08SH07

(08SS100)

  ‘West’ Zone 171.5 172.0 0.5 0.40 3.95 0.060 4340 0.2 2.1 Quartz-stibnite mineralized vein (3 inches)
140

08SH07

(08SS101)

  Zone not designated 175.0 175.5 0.5 0.40 3.43 0.011 773 0.2 2.1 Thin quartz vein with stibnite
141

08SH07

(08SS102)

  Zone not designated 181.5 182.0 0.5 0.40 17.54 0.020 33.8 0.95 2.8 2.0 inch massive stibnite in two veins;
142

08SH07

(08SS104)

   ‘A’ Zone 185.2 185.7 0.5 0.40 11.28 0.020 102 0.9 3.1 2.0 inch massive stibnite in two veins;
143

08SH07

(08SS106)

   ‘A’ Zone Hanging Wall 201.0 202.0 1.0 0.80 0.03 0.300 >10000 0.29 9.9 Steep quartz-carbonate veins with minor stibnite and arsenopyrite
144

08SH07

(08SS111)

  ‘B’ Zone 221.0 222.0 0.8 0.64 21.10 0.149 378 1.14 0.9 Contains 4.0 inch thick massive stibnite in quartz-stibnite zone 1.0 feet thick (visual estimate by QP)
145

08SH07

(08SS115)

  ‘C’ Zone? 250.0 250.5 0.5 0.40 0.01 0.040 6090 0.2 5.5 Vug-rich quartz vein with AsPy in selvage zones
146

08SH10

(08SS147)

  ‘West’ Zone 90.2 91.6 1.4 1.16 4.39 0.280 5370 0.26 18.8 Thick gold-bearing vein with isolated lenses of stibnite
147

08SH10

(08SS148)

  Footwall ‘A’ Zone 104.4 105.1 0.7 0.58 4.41 0.050 6200 0.23 21.2 Quartz-carbonate vein with minor stibnite \

 

 

 

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
148

08SH10

(08SS149)

  ‘A’ Zone 106.3 107.0 0.7 0.58 20.36 0.100 512 1.48 4.0 8 inch thick stibnite quartz vein (visual estimate by QP)
149

08SH10

(08SS150)

  ‘B’ Zone 188.4 189.2 0.8

0.64

 

25.00 0.120 112.5 1.56 3.6 8 inch thick stibnite-quartz vein with 55% Sb2S3 (visual estimate by QP)
150

08SH10

(08SS151)

  ‘C’ Zone 290.8 291.5 0.7 0.58 0.08 0.014 1620 0.16 5.4 Quartz vein 3 inches thick with stibnite grains
151

08SH23

(08SS326)

  ‘A’ Zone 194.5 195.5 1.0 0.80 18.24 0.520 798 0.48 2.9 Quartz-stibnite vein with 8 inches of true vein thickness
152

07SH16

(07SS183-186)

  ‘A’ Zone 238.1 243.1 5.0 4.15 1.79 0.045 1090 NA 3.1 Stibnite bearing stockwork zone; core of massive stibnite zones
153

Including

(267396)

  A Zone Vein Wall 242.8 243.3 0.5 0.41 42.72 0.170 NA NA 4.2 Massive stibnite in core
154

07SH16

(07SS186)

      ‘ B’ Zone 245.3 245.8 0.5 0.41 23.24 0.030 42.7 NA 19.9 Semi-massive stibnite  zone in larger
155

07SH16

(07SS192)

  ‘C’ Zone? 366.0 366.5 0.5 0.41 0.12 0.035 1510 NA 2.1 Thin quartz vein with stibnite grains
156

08SH20

(08SS285

  West of ‘A’ Vein 212.0 217.0 5.0 4.0 0.10 0.000 41.2 0.41 18.2 Zone of quartz veinlets with trace stibnite
157

08SH20

(08SS287)

  ‘A’ Vein 242.6 243.3 0.7 0.56 3.32 0.030 3250 0.11 1.0 Quartz=stibnite vein with 10% Sb2S3
158

08SH20

(08SS291)

  ‘B’ Vein? 278.8 279.8 1.0 0.80 0.01 0.044 4340 0.28 46.3 Quartz-aspy vein zone; no stibnite recognized
159

08SH20

(08SS294)

  ‘C’ Vein? 329.5 330.0 0.5 0.40 0.02 0.062 >10000 0.16 93.3 Quartz aspy vein zone; no stibnite recognized
160

08SH08

(08SS119)

  ‘West’ Zone 347.9 348.6 0.7 0.56 5.77 2.68 >10000 0.54 8.7 4.0 inch wide massive stibnite in phyllitic schist with only minor quartz gangue
161

08SH08

(08SS122)

  Footwall of ‘A’ Zone 375.0 375.5 0.5 0.40 34.77 0.610 73.2 8.12 1.1 Massive stibnite lense 7 inches wide (true thickness=5 inches); with 50% quartz

 

 

 

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
162

08SH08

(08SS123-124)

   ‘A’ Zone 378.4 381.2 2.8 2.25 18.29 0.183 2,919 0.41 1.1 Massive stibnite lense 6 inches thick with 50% quartz gangue (visual estimate by QP)
163

Including

(08SS123)

  Hanging Wall ‘A’ Zone 380.0 381.2 1.2 0.96 46.02 0.050  39.8 0.42 1.1 Hanging Wall of ‘A’ Zone contains quartz-stibnite stockwork
164

08SH08

(08SS126)

  ‘B’ Zone 405.2 405.7 0.5 0.40 0.03 0.014 3490 0.27 5.8 Weal quartz vein mineralization
165

08SH19

(08SS275)

  ‘West’ Zone? 148.5 149.0 0.5 0.40 1.76 0.005 84.9 0.48 4.3 Weak quartz stibnite vertical  vein
166

08SH19

(08SS281-283)

  ‘A’ Zone 217.0 219.5 2.5 2.07 19.13 0.138

2750

13.1

0.28

4.28

2.3

0.3

Wide zone of stibnite-Quartz stockwork mineralization
167

Including

(08SS281)

  ‘A’ Zone  Footwall 217.0 217.5 0.5 0.41 22.75 0.030 26.7 0.92 0.3 Two 1.0 inch thick massive stibnite-quartz  veins
168

Including

(08SS283)

  Main ‘A’ Zone 218.5 219.5 1.0 0.83 34.61 0.350 13.1 4.28 0.3 Two stibnite + quartz veins with 3 flecks of visible gold (visual estimate by QP)
169

08SH29

(08SS355)

  ‘A’ Zone 347.0 348.0 1.0 0.83 0.02 0.000 146 0.01 32 Quartz-carbonate vein with trace stibnite—Sb not reflected in assay results
170

08SH21

(08SS301)

  Footwall to ‘A’ Zone 305.0 305.5 0.5 0.40 16.96 0.040 263 0.24 0.5 Stibnite plus quartz euhedral vein; cuts schist vertically
171

08SH21

(08SS302)

  Main  ’A’ Zone 305.5 307.0 1.5 1.20 63.47 0.080 3.1 3.65 <0.2 Massive stibnite 13 inches true thickness—no gangue; most impressive zone observed
172

08SH21

(08SS305)

  Hanging Wall to ‘A’ Zone 312.7 313.5 0.7 0.56 30.20 0.410 101 8.46 0.2 Quartz-stibnite vein; same pattern  as 08SH08
173

08SH21

(08SS306)

  ‘B’ Zone 317.0 317.7 0.7 0.56 27.10 0.190 72.7 0.54 0.4 Vertical quartz-stibnite vein
174

08SH21

(08SS307)

  ‘B’ Zone 317.7 318.7 1.0 0.80 4.85 0.020 2150 0.17 13.8

Disseminated zone in hanging wall.

 

 

 

 

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
175

08SH25

(08SS346)

  ‘West’ Zone? 40.8 41.3 0.5 0.41 1.07 0.040 >10000 0.3 120 Quartz vein with disseminated stibnite and >3% arsenopyrite
176

08SH25

(08SS351)

  ‘A’ Zone 374.8 376.5 1.7 1.41 43.20 2.860 367 1.81 0.5 Massive stibnite with no gangue—additional quartz in selvages;   70 % Sb2S3 and the rest quartz (visual estimate by QP)
177

08SH25

(08SS352-353)

  Hanging Wall of ‘A’ Zone 376.5 378.5 2.0 1.66 4.46

0.140

 

 

3080 0.41 7.4 A total of four (4) stibnite-quartz veins each about 1.5 inches thick; with arsenopyrite
178

Including

08SS352

  Hanging Wall of ‘A’ Zone 376.5 377.0 0.5 0.41 4.45 0.214 5630 0.35 15.6 Gold enriched portion of wider intersection
179

08SH31

(08SS369)

  ‘West’ Zone 272.0 273.5 1.5 1.09 0.010 0.090 >10000 0.09 3.3 Weak quartz vein mineralization with trace stibnite.
180

08SH26

(08SS398)

  Footwall of ‘A’ Zone 334.5 335.0 0.5 0.37 1.04 0.260 >10000 0.09 3.6 Several quartz-sulfide veins with stibnite veins
181

08SH26

(08SS399)

  Interpreted ‘A’ Zone 337.0 337.5 0.5 0.37 3.59 0.070 6700 0.14 7.2 Quartz-stibnite vein with about 10% stibnite
182

08SH26

(08SS400)

  Hanging Wall ‘A’ Zone 340.5 341.0 0.5 0.37 4.91 0.030 3250 0.13 52.7 Quartz-stibnite vein zone with 12-14% Sb2S3
183

08SH26

(08SS403)

  ‘B’ Zone? 352.0 359.0 7.0 5.11 0.01 Trace 82.4 0.04 5.6 Swarm of quartz veins with isolated grains of stibnite.
184

08SH09

(08SS138)

  ‘A’ Zone 346.4 347.4 1.0 0.80 5.85 0.090 3020 0.51 3.1 Quartz-stibnite vein with about 10% Sb2S3; (visual estimate by QP)
185

08SH09

(08SS139)

  ‘A’ Zone Hanging Wall 350.5 351.2 0.7 0.56 0.01 0.084 5890 0.33 2.4 Quartz vein with trace stibnite

 

 

 

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
187

08SH27

(08SS407)

  ‘A’ Zone 346.0 347.0 1.0 0.80 0.01 0.010 3860 0.07 36.6 Quartz vein with isolated grains of stibnite and 0.35% arsenic
188

09SH01

(09SS01)

  ‘B’ Zone 114.2 114.8 0.6 0.50 13.90 0.071 475 0.79 0.50 One inch wide massive quartz-stibnite vein with 80% stibnite
189

09SH01

(09SS02)

 

‘A’ Zone Hanging Wall 178.2 181,1 2.9 2.40 0.03 0.058 6,310 0.22 4.1 Vuggy coarse quartz veins with trace disseminated sulfides
190

09SH01

(09SS03)

  ‘A’ Zone 181.1 182.0 0.9 0.75 <0.01 0.072 7,730 0.25 2.5 Dense quartz vein swarm with trace stibnite and arsenopyrite
191

09SH01

(09SS04)

  West Zone 189.9 190.6 0.7 0.58 0.07 0.126 6,680 0.27 8.9 3.25 inch thick vuggy quartz-stibnite vein
192

09SH02

(09SS019)

  ‘A’ Zone 160.3 162.0 1.7 1.36 5.64 0.035 2,310 0.27 0.9 Quartz carbonate stibnite stockwork
193

09SH02

(09SS020)

  ‘A’ Zone Hanging Wall 162.0 162.9 0.9 0.72 0.18 0.035 4,560 0.37 15.6 Quartz-stibnite breccias vein; analytical  Sb content lower than visual in core
194

09SH02

(09SS021)

  ‘A’ Zone Hanging Wall 162.9 164.6 1.7 1.36 3.05 0.042 3,790 0.40 29.1 Two vertical quartz-stibnite veins 0.75 inches thick; 0.30 foot carbonate vein
195

09SH03

(09SS035

 

  ‘A’ Zone hanging wall 164.1 164.6 0.5 0.40 0.35 0.012 NA NA NA 3/8 inch qtz +Sb; 30% stibnite—over-drilled
196

09SH03

(09SS036)

  ‘A’ Zone 168.0 168.6 0.6 0.40 0.80 0.019 NA NA NA <1/2 inch qtz-Sb; 80% stibnite-over -drilled
197

09SH04

(09SS039-040)

  ‘B’ Zone 145.0 148.7 3.7 2.75 1.57 0.169 5,130 0.90 2.6 Quartz-carbonate veins and quartz-stibnite breccias—contamination from hanging wall
198

09SH04

(09SS047)

  ‘A’ Zone 193.6 195.8 2.2 1.62 3.71 0.002 415 0.24 3.4 Abundant quartz carbonate stibnite veins
199

09SH04

(09SS048)

  ‘A’ Zone 195.8 196.3 0.5 0.37 1.65 0.190 2,170 0.37 15.7 Similar to 09SS047 but more disseminated arsenopyrite

 

 

 

 

Sample
Control #
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite Target
Vein Zone
From
(feet)
To (feet) Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/t)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
200

09SH05

(09SH022)

  ‘A’ Zone 276.2 276.7 0.5 0.30 47.29 0.217 2.9 1.16 0.7 Hanging wall of massive stibnite vein; arsenopyrite in hanging wall (see cover photo)
201

09SH05

(09SS023)

  ‘A’ Zone 276.7 278.3 1.6 1.30 69.21 0.251 <0.1 1.63 0.2 Massive stibnite vein (see cover photo)
202

09SH05

(09SS024)

  ‘A’ Zone 278.3 278.8

0.5

0.30 39.53 0.389 17.9 0.79 1.3 Footwall contact zone containing massive stibnite arsenopyrite
203

09SH06

(09SS054)

  ‘A’ Zone 214.3 215.3 1.0 0.75 36.24 0.061 12.3 15.70 0.4 Massive stibnite  up to 3 inches thick within sheared carbonate-stibnite vein swarms
204

09SH07

(09SS058)

 

 

 

‘A’ Zone Hanging wall

 

216.2 217.0 0.9 0.62 34.00 0.648 45.7 3.74 0.2 Quartz-stibnite veins, locally massive
205

09SH07

(09SS059)

  ‘A’ Zone 218.0 219.6 1.6 0.93 47.97 0.780 3.6 7.02 2.9 One foot wide massive stibnite-quartz vein with fine grained sheared stibnite
206

09SH08

(09SS060)

  ‘A’ Zone 278.6 279.7 1.1 0.64 55.38 0.566 <0.1 12.15 0.7 0.64 feet wide (true width) massive stibnite vein with 85% massive stibnite
207

09SH09

(09SS063)

  Hanging wall of ‘A’ Zone 165.5 166.5 1.0 0.83 0.09 0.060 5,800 0.27 3.4 Quartz-stibnite stockwork veins; more visual stibnite than analytical Sb (discrepancy?)
208

09SH09

(09SS064-065)

  ‘A’ Zone 169.0 172.3 3.3 2.00 2.20 0.090 8,380 0.26 14.5 Broken, chaotic quartz-stibnite vein zone with Sb veins 0.5-1.5 inches.  True width is 2.0 ft; part of larger chaotic zone 6.8 feet wide (from 165.5-172.3

 

 

 

 

APPENDIX II Summary of Relevant Sample Data Used in Calculation of Inferred Sb and Au Resources from Pringle Bench that are described in this Technical Report.

 

Sample
Control
#
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite
Target
Vein Zone
From
(feet)
To
(feet)
Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/ton)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
1  

Trench I

(07112-07113)

West of ‘West’ Zone 90.2 95.1 4.9 4.9 14.64 0.030 NA NA NA Multiple thin stibnite quartz veins vertical
2  

Trench I

(0715)

‘West’ Zone 100.6 102.7 2.1 2.1 26.23 0.230 NA NA NA Semi-massive stibnite-quartz vein; vertical
3  

Trench I

(07120)

‘A’ Zone 132.2 133.4 1.2 1.2 30.03 0.044 NA NA NA Trench exposure shows vertical vein
4  

Trench I

(0714)

‘B’ Zone 157.4 163.3 5.9 5.9 30.35 0.035 NA NA NA Semi-massive stibnite in quartz vein about 1.5 feet
5  

Trench I

(07129)

‘C’ Zone 189.6 190.2 0.6 0.6 22.92 0.040 NA NA NA Thin, semi-massive stibnite quartz vein
6  

Trench I

(07159)

East of ‘C’ Zone 428.0 428.2 0.2 0.2 48.07 0.020 NA NA NA Massive stibnite near vertical gash vein with <5.0% quartz
7  

Trench I

(07166)

East of ‘C’ Zone 472.3 472.6 0.3 0.3 59.52 0.010 NA NA NA Massive stibnite near vertical gash vein with <5.0% quartz
8  

Trench I

(07176)

East of ‘C’ Zone 540.2 540.4 0.2 0.2 64.76 0.010 NA NA NA Massive stibnite near vertical gash vein with <5.0% quartz
9

07SH08

(07SS71-73)

  ‘B’ Zone 45.0 46.5 1.5 1.25 5.62 0.069 NA NA NA Vertical stibnite-quartz vein
10

Including

(07SS71)

  ‘B’ Zone 45.0 45.5 0.5 0.42 12.60 0.140 NA NA NA Vertical stibnite-quartz vein
11 07SH08   West Zone? 147.0 148.0 1.0 0.83 0.31 0.052 NA NA NA Disseminated stibnite with arsenopyrite
12

07SH08

(07SS75)

  ‘A’ Zone 78.25 79.25 1.0 0.80 40.80 0.212 NA NA NA Nearly massive stibnite in quartz gangue
13

07SH09

(07SS90)

  ‘B’ Zone 46.75 47.75 1.0 0.83 8.78 0.020 NA NA NA Vertical stibnite-quartz vein; twinned from 07SH08
14

07SH09

(07SS93)

  ‘A’ Zone 80.0 80.5 0.5 0.42 33.51 0.391 NA NA NA Nearly massive stibnite in quartz gangue twinned
15 07SH09   ‘West’ 86.0 86.5 0.5

0.42

10.78 0.044 NA NA NA Disseminated stibnite

 

 

 

 

Sample
Control
#
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite
Target
Vein Zone
From
(feet)
To
(feet)
Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/ton)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
16  

Trench M

(07M08-07M10)

‘West’ Zone 114.8 116.9 2.1 2.10 19.90 0.035 NA NA NA ‘West’ Zone of semi-massive stibnite plus quartz; true thickness=0.7 feet
17  

Trench M

(07M13)

‘A’  Zone 121.4 127.9 6.5 6.50 35.11 0.000 NA NA NA Semi-massive stibnite in phyllite gangue zone
18  

Trench M

(07M17)

‘B’ Zone 127.9 141.0 13.1 13.1 1.45 0.020 NA NA NA Continuous chip through Sb-bearing veinlet zone.
19

07SH07

(07SS49)

  ‘B’ Zone 30.0 31.0 1.0 0.83 7.11 0.023 NA NA NA About 12% stibnite in euhedral quartz gangue
20

07SH07

(07SS52)

  ‘A’ Zone 65.0 66.0 1.0 0.83 14.88 0.338 NA NA NA Interpreted ‘A’ Zone of semi-massive stibnite plus quartz mineralization; true thickness=0.7 feet
21

07SH07

(07SS61)

  ‘West’ Zone 132.5 133.0 0.5 0.42 0.29 0.022 NA NA NA Stibnite in quartz vein
22 07SH06   ‘A’ Zone 18.3 19.3 1.0 0.83 60.03 <0.005 NA NA NA Massive stibnite lense  6 inches thick
23

07SH06

(07SS44)

  ‘West Zone’ 36.8 37.3 0.5 0.42 8.28 0.028 NA NA NA Disseminated stibnite in quartz carbonate vein
24

07SH06

(07SS46)

  ‘West Zone” 42.0 42.5 0.5 0.42 6.88 <0.005 NA NA NA Disseminated stibnite in quartz carbonate vein
25

07SH05

(07R548)

  West Zone 112.0 115.0 3.0 2.22 2.97 <0.005 NA NA NA Silicified zone with disseminated stibnite
26

07SH02

(07SS15)

 

  ‘A’ Zone 39.5 40.5 1.0 0.83 19.56 0.020 NA NA NA Quartz-stibnite vein with thermal metamorphic textures (6 inches thick; QP examination)
27

07SH02

(07SS18)

  ‘West’ Zone 51.5 52.5 1.0 0.83 0.21 0.015 NA NA NA Disseminated stibnite in quartz vein; with arsenopyrite
28  

Trench ‘D’

(06ST001-002)

‘West’ Zone 67.0 67.5 0.5 0.50 27.86 0.090 NA NA NA High angle, semi-massive stibnite veins (3) in schist

 

 

 

 

Sample
Control
#
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite
Target
Vein Zone
From
(feet)
To
(feet)
Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/ton)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
29  

Trench ‘D’

(06ST030-032)

‘A’ Zone

 

85.0 86.5 1.5

1.50

14.95 0.037 NA NA NA Disseminated stibnite in quartz vein; with arsenopyrite
30

07SH02

(07SS24-25)

  West Sb-Au vein 183.5 187.5 4.0 2.5 1.05 0.019 NA NA NA Wide zone with vein zone about 2.5 feet in true thickness; stibnite disseminations in quartz
31

Including

(07SS24)

  West Sb-Au vein 183.5 186.5 3.0 2.0 1.70 0.017 NA NA NA Vein zone about 2.0 feet in true thickness; stibnite disseminations in quartz
32

07SH04

(07SS30)

  West Zone 108.5 109.0 0.5 0.42 6.05 0.004 NA NA NA Disseminated stibnite in thin quartz zone quartz
33

07SH03

(07SS219)

  ‘A’ Zone 17.5 18.4 0.9 0.75 3.83 0.054 NA NA NA Quartz-stibnite vein with thermal metamorphic textures (6 inches thick; QP examination)
34

07SH03

(07SS220)

  West Zone 34.6 35.1 0.5 0.50 0.84 0.005 NA NA NA Disseminated stibnite in thin quartz zone quartz
35  

Trench F

(06ST061)

West of ‘West’ Zone 200.0 200.3 0.3 0.30 20.18 0.748 NA NA NA Steep, stibnite-quartz vein
36  

Trench F

(06ST063)

‘West’ Zone 315.0 315.3 0.3 0.30 8.43 0.090 NA NA NA Steep, stibnite-quartz vein
37  

Trench F

(06ST066)

‘A’ Zone 350.0 350.3 0.3 0.30 17.42 0.120 NA NA NA

Quartz-stibnite vein with thermal metamorphic textures (6 inches thick; QP examination);

Definitive observation for ‘A’ Zone

38  

Trench F

(06ST071)

 ‘C’ Zone 435.0 435.3 0.3 0.30 46.33 0.040 NA NA NA Thin stibnite vein in schist
39

06SH01

(06SH153)

  

 

‘A’ Zone 275.0 280.0 5.0 4.15 2.50 0.050 NA NA NA RC Program with stibnite-quartz zone identified.
40

06SH01

(06SH150)

  ‘B’ Zone 250.0 255.0 5.0 4.15 0.93 0.030 NA NA NA Disseminated stibnite in thin quartz zone
41

09SH11

(09SS077)

  West Zone 10.7 11.4 0.7 0.58 38.51 0.807 36.2 1.51 1.7 Massive stibnite 0.5 feet thick
42 06STO30-032) Trench H West Zone 85.0 86.5 1.50 1.50 14.90 0.050 NA NA NA Continuous Chip

 

 

 

 

Sample
Control
#
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite
Target
Vein Zone
From
(feet)
To
(feet)
Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/ton)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
43

09SH11

(09SS078)

  ‘A’ Zone 29.0 30.0 1.0 0.83 10.25 0.122 1,120 0.12 2.2 Quartz-stibnite vein 0.6 feet of a 1.5 foot vein of massive stibnite recovered
44

09SH12

(09SS080)

 

 

 

Footwall ‘A’ Zone 17.0 17.5 0.5 0.42 7.20 0.041 3,370 0.23 0.4 Broken quartz-stibnite vein
45

09SH12

(09SS081)

  ‘A’ Zone 20.0 21.5 1.5

1.25

 

 

32.10 0.052 39.9 0.34 0.2 One foot of massive stibnite and 0.5 feet of stibnite-quartz stockwork
46

09SH13

(09SS085)

  ‘A’ Zone 233.0 237.8 4.8 2.78 8.91 0.045 1,260 0.33 2.1 Two foot wide (true width) zone of braided quartz-stibnite veins
47

09SH14

(09SS086)

  ‘B’ Zone 43.2 44.7 1.5 1.25 36.60 0.008 0.7 0.18 4.3 0.3 foot wide quartz-stibnite vein with 50% fine grained sheared stibnite—like ‘A’ Zone
48

09SH14

(09SS088)

  ‘A’ Zone 112.5 113.5 1.0 0.83 50.94 0.019 1.2 2.44 1.2 Massive stibnite with oxidation--kermesite
49

09SH14

(09SS089)

  West Zone 129.5 130.0 0.5 0.30 6.94 0.011 1,430 0.21 3.6 Braided quartz-stibnite vein swarm
50

09SH15

(09SS092)

  

 

‘B’ Zone 13.0 13.7 0.7 0.41 15.25 0.156 2,170 0.22 1.6 Sheared quartz-stibnite zone possible caught in fault zone
51

09SH15

(09SS095)

  ‘A’ Zone hanging wall 156.0 157.0 1.0 0.58 3.32 0.057 7,880 0.30 61.1 Two parallel quartz-stibnite veins with semi-massive stibnite
52

09SH15

(09SS096)

  ‘A’ Zone 162.5 163.5 1.0 0.58 35.48 0.030 75.3 0.46 1.3 One foot wide zone of quartz-stibnite mineralization; 4 inches massive stibnite--sheared
53

09SH16

(09SS098)

  ‘A’ Zone branch 152.0 153.0 1.0 0.74 8.20 0.015 1,110 0.24 3.5 Over-drilled quartz-stibnite vein
54

09SH16

(09SS099)

  ‘A’ Zone 156.0 157.0 1.0 0.74 10.16 0.039 2,210 0.49 7.9 Broken quartz-stibnite vein
55

09SH16

(09SS100)

 

West Zone 

160.5 161.5 1.0 0.74 5.77 0.071 8,290 1.04 18.2 0.3 feet quartz-stibnite vein
56

09SH18

(09SS116-117)

  ‘A’ Zone hanging wall 72.5 74.5 2.0 1.33 3.30 0.009 990 0.15 14.1 Quartz-carbonate stibnite veins in hanging wall of ‘A’ zone

 

 

 

 

Sample
Control
#
Drill Hole #
(Assay
Intervals)
Underground
or Surface
Channels
Stibnite
Target
Vein Zone
From
(feet)
To
(feet)
Width
(feet)
Estimated
True
Width
Sb (%) Au
(oz/ton)
As
(ppm)
Hg
(ppm)
Pb
(ppm)
Brief Description
57

09SH18

(09SS109)

  ‘A’ Zone 74.5 75.5 1.0 0.66 37.73 5.72 6.9 0.32 <0.2 Quartz-stibnite vein with coarse visible gold, 0.8 feet true thickness
58

09SH18

(09SS122-123)

  West Zone 109.5 111.5 2.0 1.33 4.11 0.016 NA NA NA Braided quartz stibnite veinlets
59

09SH19

(09SS132)

  ‘A’ Zone 173.8 174.7 0.9 0.50 32.50 0.330 34.2 0.85 0.6 Semi-massive stibnite with granoblastic textures
60

09SH19

(09SS137)

  West Zone 215.5 216.5 1.0 0.52 7.95 0.033 1,635 0.27 10.7 Braised quartz-antimony vein stockwork
61

09SH20

(09SS148)

  ‘A’ Zone 205.5 206.5 1.0 0.50 2.74 1.690 8.560 0.30 11.2 Quartz-carbonate-stibnite vein with visible gold
62

09SH20

(09SS150)

  ‘A’ Zone footwall 223.0 224.0 1.0 0.50 11.48 0.044 NA NA NA Massive stibnite-quartz zones to 6 inches; with carbonate
63

09SH20

(09SS152)

  Offset? ‘A’ Zone footwall 272.0 273.0 1.0 0.50 11.08 0.055 NA NA NA Massive stibnite-quartz zones to 6 inches; with carbonate
64

09SH20

(09SS155)

  West Zone 324.5 325.5 1.0 0.50 27.29 0.010 42 0.34 1.0 Massive stibnite-quartz zones to 6 inches; with carbonate
65

09SH20

(09SS156)

  West Zone extension 335.0 338.0 3.0 1.74 9.75 0.135 1,675 039 8.1 Numerous braided quartz-stibnite veinlets within 2.5 foot true thickness zone; interpreted  offset
66   Channel Sample in Trench H; (07H03)   ‘A’ Zone 33.0 49.2 16.2 16.2 8.74 5.56 NA NA NA Wide “A’ zone channel sampled—suspect analysis rejected

 

 

 

 

 

Exhibit 99.2

 

 

United States Antimony Announces Completion of New

Technical Report on Nolan Creek, Alaska Gold/Antimony Deposit

 

Measured and Indicated Resource Value Exceeds $314 Million

Inferred Resource Value Exceeds $125 Million

 

Mining Operations Commenced Earlier this Month

 

“The Critical Minerals and ZEO Company”

~ Antimony, Gold, Tungsten, and Zeolite ~

 

DALLAS, TX / ACCESS Newswire / October 21, 2026 / United States Antimony Corporation (“USAC,” “US Antimony,” or the “Company”), (NYSE: UAMY) (NYSE Texas: UAMY), a leading producer and processor of antimony, zeolite, and other critical minerals, and the only fully integrated antimony company in the free world outside of China and Russia, announced today the completion of a new Technical Report defining the gold-antimony resources on its 100% owned Nolan Creek Property located in northern Alaska. The Technical Report, compliant with SEC S-K 1300 Regulations will be filed with the SEC under a Form 8-K today. This Technical Report was authored by Mr. Thomas K. Bundtzen, President of Pacific Rim Geological Consulting, Inc recognized as a Qualified Person in accordance with the S-K 1300 Regulations.

 

Nolan Creek (Antimony & Gold)

 

The company acquired the Nolan Creek BLM Claims through a Trustee's Sale at the Courthouse steps in a public auction on January 30, 2026, after identifying the property and region as having high potential for hosting antimony as well as gold deposits. The Nolan Creek deposit is located approximately 175 miles north of Fairbanks, Alaska. The property was previously owned by a private company who conducted exploration and mining of both placer and lode targets from both surface and from an underground operation more than twenty years ago. Management of US Antimony chose to further expand the claim package by purchasing Alaskan State Claims (shown in green below) over the wider area to capture the region’s full potential. The dark grey areas represent individual placer claim holders in the area. The region was predominately open since the last commercial miner in the area abandoned the Nolan Creek region when gold prices were significantly depressed.

 

 

 

 

Resource Tables

 

 

Considering the economic potential of Nolan Creek, USAC is using $4,000/oz gold price and $8.30/lb antimony price. Currently all planned operations are within the lode claims. The existing exploration drift intersects the highest confidence material: measured and indicated. Phase 2 of the operation, after the bulk sample, will continue to target this M&I material which has a current insitu value of $233.9M from contained antimony and $79.9M from contained gold (before mining, transporting and processing costs and before recovery).

 

Resource Value
   Sb - $8.30/lb   Au - $4000/oz   Classification 
Measured & Indicated Lode ($k)  $233,877.4   $79,872.0   $313,749 MM
Inferred Lode ($k)  $78,161.1   $47,010.0   $125,171 MM
         Grand Total   $438,920 MM

 

*Before mining, transporting and processing costs

**Before process recovery

 

 

 

 

 

In 2006, the previous owner collared an exploration adit and excavated 570 linear feet of 12 foot x12 foot exploration drifts and crosscuts. These headings intercepted three parallel veins of high-grade antimony containing gold as a secondary metal

 

The adit, collared near the bottom of a hillside, connects to the antimony/gold vein structures via horizontal headings sufficiently large to provide access for modern mobile underground equipment. We anticipate that the exploration drifts and crosscuts can be extended to provide immediate access to multiple ore faces. In the first half of 2027, we plan to demonstrate that the site has the capability to fully meet our Radersburg, Montana name plate mill feed capacity using long hole open stope mining methods. Our contractor’s personnel have previous experience in utilizing mechanized longhole mining methods for production from narrow vein deposits.

 

Earlier this year, the company hosted pre-bid underground site inspection tours by two internationally recognized mining contractors in preparation for their submission of tenders in mid-August, for underground development and mining of this high-grade material. One third party contractor was selected, and mining operations began this month with an excavation of an exploration bulk sample of approximately 1,000 tons. Our third-party contractor has mobilized equipment and personnel to the site and with the goal of having their crews operating two shifts daily by the end of October.

 

Additionally, USAC has engaged an experienced underground mining geologist to work on site to map the geology and assist in minimizing dilution of this high-grade antimony/gold resource.

 

USAC has recently contracted a local Alaskan transportation company to deliver the bulk sample to our floatation mill facility located in Radersburg, Montana. The intention is to verify the overall economics and practicality of producing antimony trisulphide meeting military specifications and to satisfy other existing antimony market demands in 2027.

 

 

 

 

Commenting on this announcement today, Mr. Gary C. Evans, Chairman and CEO of USAC, stated, “This is another example of USAC’s “fast track” approach to mining methods. Having only acquired this property earlier this year, and operating in a weather environment that is difficult at best, we will be moving approximately 1,000 tons of lode ore (antimony and gold) from the underground mine for processing to our in-house flotation mill located in Radersburg, Montana, in preparation for sales during the months of November and December this year. This shipment will represent our first antimony delivered from our exploration efforts in Alaska to Montana for processing.”

 

Commenting further on the Nolan Creek activities, Mr. Joseph Bardswich, P.E., Executive Vice President and Chief Mining Engineer, stated “We were very fortunate to have acquired this quality of a property earlier this year at such a nominal price. We were successful at solving prior existing environmental issues, acquiring additional leases around the prospect, making repairs on a 7 mile road owned by the state in an effort to make it usable, acquiring and moving to the site a “man camp, contracting an experienced mining contracting firm who are already underground performing mining operations today, negotiating the transport of material to Montana during the middle of winter, with all of this done in less than 12 months! These actions are representative of the quality and perseverance of the personnel that US Antimony has attracted within our organization.”

 

About USAC:

 

United States Antimony Corporation and its subsidiaries in the U.S., Mexico, and Canada ("USAC," “U.S. Antimony,” the "Company," "Our," "Us," or "We") sell antimony, zeolite, and precious metals primarily in the U.S., Mexico, and Canada. The Company mines, purchases, and processes ore primarily into antimony oxide, antimony metal, antimony trisulfide, and precious metals at its facilities located in Montana and Mexico. Antimony oxide is used to form a flame-retardant system for plastics, rubber, fiberglass, textile goods, paints, coatings, and paper, as a color fastener in paint, and as a phosphorescent agent in fluorescent light bulbs. Antimony metal is used in bearings, storage batteries, and ordnance. Antimony trisulfide is used as a primer in ammunition. The Company also recovers precious metals, primarily gold and silver, at its Montana facility from third party ore. At its Bear River Zeolite (“BRZ”) facility located in Idaho, the Company mines and processes zeolite, a group of industrial minerals used in water filtration, sewage treatment, nuclear waste and other environmental cleanup, odor control, gas separation, animal nutrition, soil amendment and fertilizer, and other miscellaneous applications. Beginning in 2024 and continuing in 2025, the Company acquired mining claims, real properties (patented claims) and leases located in Alaska, Montana, and Ontario, Canada in an effort to reduce the cost of third-party antimony ore purchases and to expand its product offerings.

 

Learn more about United States Antimony Corporation at www.usantimony.com.

 

 

 

 

Forward-Looking Statements:

 

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including, without limitation, statements regarding the Company’s future operations, production levels, financial performance, business strategy, market conditions, demand for antimony, zeolite, other critical minerals, and precious metals, expected costs, and other statements that are not historical facts. These statements are based on current expectations, estimates, forecasts, and projections about the industries in which the Company operates, as well as management’s beliefs and assumptions. Words such as “anticipates,” “expects,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “may,” “will,” “should,” “could,” and variations of these words or similar expressions are intended to identify such forward-looking statements.

 

Forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those indicated in such statements, including, but not limited to: fluctuations in the market prices and demand for antimony and zeolite; changes in domestic and global economic conditions; operational risks inherent in mining and mineral processing; geological or metallurgical conditions; availability and cost of energy, equipment, transportation, and labor; the Company’s ability to maintain or obtain permits, licenses, and regulatory approvals; changes in environmental and mining laws or regulations; competitive factors; the impact of geopolitical developments; and the effects of weather, natural disasters, or health pandemics on operations and supply chains. Additional information regarding risk factors that could cause actual results to differ materially is included in the Company’s filings with the U.S. Securities and Exchange Commission, including its Annual Report on Form 10-K and Quarterly Reports on Form 10-Q.

 

The Company undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by law. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof.

 

Investor Relations Contact: Media Relations Contact:
   
Jonathan Miller, VP, Investor Relations Anthony D. Andora
4438 W. Lovers Lane, Unit 100 Edge Consulting, Inc.
Dallas, Texas 75209 1560 Market Street, Ste. 701
E-Mail: Jmiller@usantimony.com Denver, Colorado 80202
Phone: 406-606-4117 E-Mail: Anthony@EdgeConsultingSolutions.com
  Phone: 720-317-8927

 

 

 

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