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Myriad Uranium Reports Final Chemical Assays from Copper Mountain. Grades Up to 60% Higher Than Probe Equivalents, with Positive Implications for Scale and Scope of the Project. Plan of Operations Application Submitted to Drill High Priority Prospects

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Myriad Uranium reports final chemical assay results from 34 holes drilled at Copper Mountain Uranium Project in Wyoming, showing significantly higher U3O8 grades compared to previous gamma probe readings. Chemical assays revealed grades up to 60% higher at 1,000 ppm cut-off, 50% higher at 500 ppm, and 20% higher at 200 ppm than equivalent probe grades. Notable findings include confirmation of extensive high-grade uranium at the Canning Deposit, with results supporting the upper range of Union Pacific's historical estimate of 15-30 million pounds U3O8. Deep intercepts suggest potential for additional mineralization, with the deepest intercept at 1,489 feet returning 832.5 ppm U3O8. The company's findings support internal documents suggesting potential for several hundred million pounds of uranium at the project.
Myriad Uranium comunica i risultati finali delle analisi chimiche su 34 fori di sondaggio effettuati presso il progetto Copper Mountain Uranium in Wyoming, evidenziando concentrazioni di U3O8 significativamente superiori rispetto alle precedenti misurazioni con sonda gamma. Le analisi chimiche hanno mostrato concentrazioni fino al 60% più elevate con un cut-off di 1.000 ppm, 50% più alte a 500 ppm e 20% maggiori a 200 ppm rispetto ai valori ottenuti con la sonda. Tra i risultati più rilevanti, si conferma la presenza di uranio ad alta concentrazione nell'area del giacimento Canning, con dati che supportano la stima storica di Union Pacific, compresa tra 15 e 30 milioni di libbre di U3O8. Intercettazioni profonde indicano un potenziale per ulteriore mineralizzazione, con il foro più profondo a 1.489 piedi che ha restituito 832,5 ppm di U3O8. I risultati dell'azienda confermano documenti interni che suggeriscono la possibilità di diverse centinaia di milioni di libbre di uranio nel progetto.
Myriad Uranium informa los resultados finales de los análisis químicos de 34 perforaciones realizadas en el Proyecto de Uranio Copper Mountain en Wyoming, mostrando grados de U3O8 significativamente más altos en comparación con las lecturas anteriores del sondeo gamma. Los análisis químicos revelaron grados hasta un 60% mayores con un corte de 1,000 ppm, un 50% más altos a 500 ppm y un 20% superiores a 200 ppm en comparación con los grados equivalentes del sondeo. Entre los hallazgos destacados se confirma la extensa presencia de uranio de alta ley en el Depósito Canning, con resultados que respaldan el rango superior de la estimación histórica de Union Pacific de 15 a 30 millones de libras de U3O8. Las intercepciones profundas sugieren potencial para mineralización adicional, con la intercepción más profunda a 1,489 pies arrojando 832.5 ppm de U3O8. Los hallazgos de la compañía respaldan documentos internos que sugieren un potencial de varios cientos de millones de libras de uranio en el proyecto.
Myriad Uranium은 와이오밍의 Copper Mountain Uranium 프로젝트에서 시추한 34개 구멍에 대한 최종 화학 분석 결과를 보고했으며, 이전 감마 프로브 측정치보다 상당히 높은 U3O8 등급을 나타냈습니다. 화학 분석 결과는 1,000 ppm 컷오프에서 최대 60% 더 높은 등급, 500 ppm에서 50% 더 높고 200 ppm에서 20% 더 높은 등급을 프로브 등급과 비교해 확인했습니다. 주요 결과로는 Canning 광상에서 광범위한 고품위 우라늄이 확인되었으며, Union Pacific의 역사적 추정치인 1,500만~3,000만 파운드 U3O8의 상한 범위를 지지하는 결과가 나왔습니다. 깊은 시추 구간은 추가 광물화 가능성을 시사하며, 가장 깊은 구간인 1,489피트에서는 832.5 ppm U3O8가 확인되었습니다. 회사의 결과는 프로젝트 내 수억 파운드 우라늄 잠재력을 시사하는 내부 문서와도 일치합니다.
Myriad Uranium rapporte les résultats finaux des analyses chimiques de 34 forages réalisés sur le projet Copper Mountain Uranium dans le Wyoming, montrant des teneurs en U3O8 significativement plus élevées par rapport aux lectures précédentes effectuées avec une sonde gamma. Les analyses chimiques ont révélé des teneurs jusqu'à 60 % supérieures avec un seuil de coupure à 1 000 ppm, 50 % supérieures à 500 ppm et 20 % supérieures à 200 ppm par rapport aux valeurs équivalentes de la sonde. Parmi les résultats notables, la confirmation d'une importante présence d'uranium à haute teneur dans le gisement Canning, avec des résultats soutenant la fourchette haute de l'estimation historique de Union Pacific, comprise entre 15 et 30 millions de livres d'U3O8. Les interceptions profondes suggèrent un potentiel de minéralisation supplémentaire, la plus profonde à 1 489 pieds ayant révélé 832,5 ppm d'U3O8. Les conclusions de la société confirment des documents internes suggérant un potentiel de plusieurs centaines de millions de livres d'uranium sur le projet.
Myriad Uranium berichtet über die endgültigen chemischen Analyseergebnisse von 34 Bohrlöchern im Copper Mountain Uranium-Projekt in Wyoming, die deutlich höhere U3O8-Gehalte im Vergleich zu früheren Gamma-Sondenmessungen zeigen. Chemische Analysen ergaben Gehalte, die bis zu 60 % höher bei einem Grenzwert von 1.000 ppm, 50 % höher bei 500 ppm und 20 % höher bei 200 ppm im Vergleich zu den entsprechenden Sondendaten sind. Bemerkenswerte Ergebnisse umfassen die Bestätigung umfangreicher hochgradiger Uranvorkommen im Canning-Lagerstättenbereich, wobei die Ergebnisse den oberen Bereich der historischen Schätzung von Union Pacific von 15-30 Millionen Pfund U3O8 unterstützen. Tiefe Bohrabschnitte deuten auf ein Potenzial für weitere Mineralisierung hin, wobei der tiefste Abschnitt in 1.489 Fuß eine Konzentration von 832,5 ppm U3O8 ergab. Die Ergebnisse des Unternehmens stützen interne Dokumente, die ein Potenzial von mehreren hundert Millionen Pfund Uran im Projekt nahelegen.
Positive
  • Chemical assays show significantly higher uranium grades than probe readings - up to 60% higher at 1,000 ppm cut-off
  • Results support the high end of historical 15-30 million pound U3O8 estimate
  • Deep intercepts suggest additional mineralization potential beyond historical 600-foot depth limit
  • Project shows potential for 'several hundred million pounds' of uranium according to historical documents
  • Mineralization patterns similar to Beaver Lodge in Athabasca basin suggest world-class deposit potential
Negative
  • Presence of secular disequilibrium in the system causing variability in grade measurements
  • True width intervals of mineralization not yet determined
  • Additional sampling and testing required to fill gaps in physical sampling

Vancouver, British Columbia--(Newsfile Corp. - June 11, 2025) - Myriad Uranium Corp. (CSE: M) (OTCQB: MYRUF) (FSE: C3Q) is pleased to report chemical assay results from the final six boreholes drilled in late 2024 at the Copper Mountain Uranium Project in Wyoming (Figure 1).

These results and the complete set of confirmed chemical assay grades (U3O8) across all 34 holes drilled late 2024 have been compared against previously reported equivalent spectral gamma probe grades (eU3O8) and confirm extensive high-grade uranium mineralisation at the Canning Deposit. Myriad's drilling program prioritized Canning due to Union Pacific's 1979 mine plan, which identified it as the largest mineralized area and the central pit of an initial six pit mining plan. Verification of historical work in this area has therefore been a priority.

Confirmed U3O8 grades are on average significantly higher than eU3O8 probe grades. The fact that confirmed individual U3O8 grades are higher, and sometimes lower, than corresponding eU3O8 grades, indicates secular disequilibrium is present in the system. The gamma probe tends to especially underestimate higher grades.

Across the 34 assayed boreholes to date, confirmed U₃O₈ grades are on average:

  • 60% higher at a 1,000 ppm cut-off
  • 50% higher at 500 ppm cut-off
  • 20% higher at 200 ppm cut-off

Many intervals with initially low or near-zero probe readings have been confirmed as mineralized by chemical assay. Notably, the deepest intercept (CAN0034, 1,489.45-1,491.25 ft) returned 832.5 ppm U₃O₈, a 242% increase over its equivalent probe grade. Therefore, more samples from the drilling campaign are being submitted for laboratory testing, and chemical assay will become the primary reporting method for Copper Mountain going forward.

Thomas Lamb, the CEO of Myriad, stated: "Based on the results of our initial drill campaign, we can preliminarily assert several positive findings. First, our assays suggest the high end of Union Pacific's historical estimate of 15-30 million pounds U₃O₈ across six deposits to a maximum depth of 600 feet is more accurate [see "Historical Estimates" disclaimer below]. Union's decision to depend on DFN grade data was overly conservative, as a number of experts had suspected. Second, our deeper intercepts may indicate new, previously unaccounted pounds. Third, these preliminary findings of deeper mineralisation, along with our higher grade mineralization's association with faults and fractures in basement granite and amphibolite schists (similar to Beaver Lodge in Athabasca) support statements in Neutron Energy internal documents from 2006-2010 that Copper Mountain's potential is "several hundred million pounds" and that "new genetic models suggest a high chance for discovery of world-class deposits in both hard rock and sandstone."

George van der Walt, Myriad's consulting geologist and technical advisor, commented: "It is good to see that the last set of final results continue to hold up to expectations. We now aim to fill gaps in the physical sampling, which has commenced."

Updated significant chemical assay intervals with a GT >0.15 ft% (equivalent to 500 ppm over 3 feet), and their equivalent spectral gamma probe intervals are provided in Table 1 below. Note that Appendix 1 provides all grade intervals at (a) 1,000 ppm (0.10%) U3O8 cut-off, 500 ppm (0.05%) U3O8 cut-off and (b) 200 ppm (0.02%) U3O8 cut-off.

Table 1: Significant intervals from chemical assay and their equivalent spectral gamma probe intervals (GT >0.15 ft% or 500 ppm U3O8 over 3 feet)

Borehole
ID
Chemical Assay IntervalEquivalent Spectral Gamma Probe Interval
From
(ft)
To
(ft)
Length
(ft)
U3O8
(ppm)
U3O8
(%)
GT
(ft%)
From
(ft)
To
(ft)
Length
(ft)
eU3O8
(ppm)
eU3O8
(%)
eGT
(ft%)
CAN0001
(DD)
158.40162.404.002306.50.230.92158.10162.033.931746.40.170.69
CAN0002
(DD)
347.68348.781.101945.70.190.21347.68348.991.31433.30.040.06
CAN0003
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0004
(DD)
222.64234.4411.802369.70.242.80222.71234.5211.811394.60.141.65
235.74238.442.70593.10.060.16235.83238.462.63953.30.100.25
240.64249.949.301190.30.121.11240.10249.619.511095.70.111.04
253.54266.4412.901571.00.162.03253.54266.6613.121115.00.111.46
287.82290.022.20871.40.090.19287.98290.282.30565.60.060.13
CAN0005
(RC)
385.00400.0015.001488.50.152.23385.00400.0015.001086.00.111.63
545.00575.0030.00941.00.092.82545.00575.0030.001365.10.144.10
CAN0006
(DD)
132.48139.557.08721.10.070.51132.51139.737.221703.00.171.23
150.22152.972.75843.10.080.23150.22152.852.631020.80.100.27
173.51176.212.70654.70.070.18173.51176.142.631463.40.150.38
225.57230.074.501134.40.110.51225.66230.264.602102.60.210.97
265.35272.857.504360.50.443.27265.35272.907.555936.50.594.48
290.94291.941.003301.80.330.33291.92292.900.982571.10.260.25
312.26320.668.401040.90.100.87312.26320.788.521733.40.171.48
341.02355.0214.001407.70.141.97341.12355.2214.102393.70.243.38
377.86380.863.00805.40.080.24377.86380.812.951578.60.160.47
408.70416.808.10660.00.070.53408.69416.898.201519.00.151.25
430.99432.591.601145.00.110.18430.99432.631.641396.50.140.23
439.20449.3010.101364.50.141.38439.12449.3610.242107.20.212.16
454.30456.902.601129.70.110.29454.28456.902.622276.10.230.60
CAN0007
(RC)
370.00375.005.00561.30.060.28370.00375.005.00234.50.020.12
455.00460.005.00758.20.080.38455.00460.005.00864.90.090.43
465.00470.005.00722.80.070.36465.00470.005.00461.30.050.23
510.00520.0010.00610.20.060.61510.00520.0010.00531.20.050.53
CAN0008
(DD)
278.89287.398.502290.40.231.95278.89287.338.441509.20.151.27
317.18320.483.301381.10.140.46317.18320.463.281042.60.100.34
332.26355.6623.401467.00.153.43332.26355.5523.291191.60.122.78
CAN0009
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
Borehole
ID
Chemical Assay IntervalEquivalent Spectral Gamma Probe Interval
From
(ft)
To
(ft)
Length
(ft)
U3O8
(ppm)
U3O8
(%)
GT
(ft%)
From
(ft)
To
(ft)
Length
(ft)
eU3O8
(ppm)
eU3O8
(%)
eGT
(ft%)
CAN0010
(DD)
71.8075.403.601204.70.120.4371.8375.443.611120.00.110.40
81.0089.108.10909.40.090.7481.0289.228.20819.60.080.67
269.29277.498.201292.00.131.06269.29277.498.201150.60.120.94
289.00294.005.001017.60.100.51287.66292.584.92603.50.060.30
553.99562.798.801345.20.131.18553.99562.858.861012.70.100.90
CAN0011
(RC)
200.00215.0015.00699.30.071.05200.00215.0015.00303.30.030.45
245.00260.0015.00614.00.060.92245.00260.0015.00257.90.030.39
295.00330.0035.00988.30.103.46295.00330.0035.00248.90.020.87
380.00395.0015.001095.50.111.64380.00395.0015.00398.20.040.60
CAN0012
(RC)
330.00340.0010.00633.80.060.63330.00340.0010.00540.30.050.54
425.00430.005.00570.70.060.29425.00430.005.00416.90.040.21
CAN0013
(DD)
290.94310.9420.001327.00.132.65290.94310.9420.001250.90.132.50
313.54320.146.60650.30.070.43313.57320.136.56448.70.040.29
322.74326.043.30612.00.060.20322.75326.033.28718.60.070.24
328.00335.907.90871.50.090.69328.00335.877.871233.50.120.97
CAN0014
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0015
(DD)
167.28179.3812.10615.30.060.74167.28179.4212.14378.40.040.46
199.10208.609.50545.80.050.52199.10208.619.51347.10.030.33
240.10243.103.00665.10.070.20240.10243.052.95346.00.030.10
CAN0016
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0017
(DD)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0018
(DD)
269.94272.742.80832.50.080.23269.94272.572.63566.60.060.15
CAN0019
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0020
(DD)
440.18448.488.30743.70.070.62440.18448.388.20923.40.090.76
486.10489.403.30626.00.060.21486.10489.383.28308.60.030.10
721.93723.932.00558.90.060.11721.93723.901.97384.70.040.08
736.00738.802.80516.50.050.14736.03738.982.95292.50.030.09
CAN0021
(RC)
295.00305.0010.001510.60.151.51295.00305.0010.001801.70.181.80
330.00335.005.001768.80.180.88330.00335.005.001141.20.110.57
CAN0022
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0023
(DD)
315.86321.365.50957.60.100.53315.86321.445.58611.10.060.34
339.15344.655.50592.40.060.33339.15344.735.58381.10.040.21
370.64373.843.20619.10.060.20370.64373.923.28690.50.070.23
442.47457.8715.401259.90.131.94442.47457.8915.421193.80.121.84
CAN0024
(DD)
326.69337.2910.603030.50.303.21326.69337.1810.492558.50.262.68
CAN0025
(RC)
85.0095.0010.001010.60.101.0185.0095.0010.00986.60.100.99
CAN0026
(RC)
265.00270.005.00496.40.050.25265.00270.005.00361.00.040.18
Borehole
ID
Chemical Assay IntervalEquivalent Spectral Gamma Probe Interval
From
(ft)
To
(ft)
Length
(ft)
U3O8
(ppm)
U3O8
(%)
GT
(ft%)
From
(ft)
To
(ft)
Length
(ft)
eU3O8
(ppm)
eU3O8
(%)
eGT
(ft%)
CAN0027
(DD)
502.50504.001.501403.20.140.21502.50504.141.64250.00.030.04
CAN0028
(DD)
205.00215.2010.20546.70.050.56205.00215.1710.17531.50.050.54
CAN0029
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0030
(RC)
335.00340.005.00793.60.080.40335.00340.005.001056.90.110.53
435.00440.005.00847.80.080.42435.00440.005.001060.80.110.53
CAN0031
(DD)
342.80348.806.00730.50.070.44342.76348.665.90662.60.070.39
381.14386.044.90726.30.070.36381.14386.064.92645.20.060.32
432.63434.932.30908.00.090.21432.63434.932.30500.90.050.12
792.45803.6511.20533.10.050.60792.45803.6011.15456.40.050.51
CAN0032
(DD)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0033
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0034
(DD)
111.85114.853.00533.00.050.16111.85114.802.95339.10.030.10
117.75120.652.90515.30.050.15117.75120.702.95578.00.060.17
144.32159.2214.901151.50.121.72144.32159.0814.761080.20.111.59
222.71227.114.401195.40.120.53222.71226.984.27490.20.050.21
1489.451491.251.80832.50.080.151489.451491.091.64343.80.030.06

 

Notes:

1) The interval lengths are "down the hole" and may not represent true width intervals as the exact nature of the mineralization distribution has not been determined yet. However, most of the holes were drilled at an inclination of 50 degrees to test a model that indicates steeply dipping mineralisation.
2) eU
3O8 is the radiometric equivalent U3O8 derived from a calibrated total gamma downhole probe.
3) U
3O8 is the chemical assay of mineralized split core samples or RC cuttings.
4) Core sampling was conducted at 3 feet intervals, adjusted to minimum of 1 foot, where appropriate.
5) Reverse Circulation sampling was conducted at 5 feet intervals, according to the drilling procedure.
6) Assay interval depths have been adjusted to spectral gamma probe depths, where appropriate.
7) Intervals were composited above a cut-off grade of 500 ppm U
3O8, with grade below cut-off less than 1 foot being included in the total interval.
8) Abbreviations: DD = Diamond Drill, RC = Reverse Circulation.
9) "High-grade uranium" is defined by the Company as composite results with >1000 ppm U
3O8 and no greater than 1-foot continuous internal dilution.

The boreholes represent a combination of diamond core and reverse circulation drilling that was planned to verify mineralization identified in drilling by Union Pacific in the late 1970s and test a grade shell model (above 0.05% eU3O8) created from cross-sections, as reported here and here. All reported assay results are represented by the borehole locations indicated on Figure 1 and Table 2 below.

Cannot view this image? Visit: https://images.newsfilecorp.com/files/6301/255222_312fdf95a432cbf3_002.jpg

Figure 1: Map of completed boreholes and grade above cut-off.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/6301/255222_312fdf95a432cbf3_002full.jpg

Table 2: Collar details for boreholes completed by Myriad

Borehole IDEasting (X)Northing (Y)Elevation (ft)AzimuthDipTypeEOH (ft)
CAN0001267366.404809808.506047.240-90DD501
CAN0002267364.904809808.506047.41359-54DD501
CAN0003267356.004809727.006049.260-50RC750
CAN0004267364.044809920.896064.710-90DD350
CAN0005267406.804809791.406044.0316-47RC600
CAN0006267413.904809878.926052.600-90DD475
CAN0007267405.304809791.406043.70352-50RC600
CAN0008267293.214809851.706061.330-50DD605
CAN0009267471.824809840.126045.330-50RC400
CAN0010266942.434809984.966178.230-90DD635
CAN0011266841.444809909.116116.570-50RC500
CAN0012266944.684809914.836155.290-50RC650
CAN0013267249.684809824.196076.9914-49.6DD700
CAN0014267031.924809836.996181.580-50RC713
CAN0015266819.334809992.736136.150-90DD863.5
CAN0016266946.494809825.456164.080-50RC660
CAN0017266956.504809753.706156.140-50DD805
CAN0018267532.504809837.606045.160-50DD414
CAN0019266835.524809885.006110.680-50RC650
CAN0020267412.804809754.506041.750-50DD996
CAN0021266858.424809947.996127.660-50RC400
CAN0022266901.614809829.746153.240-50RC1100
CAN0023267388.484809790.676045.150-50DD951
CAN0024267036.004809882.006176.870-50DD588
CAN0025266941.404809960.306168.230-50RC400
CAN0026266821.104809967.306130.190-50RC650
CAN0027267442.404809801.986038.840-53DD797
CAN0028266824.004809905.006113.010-50DD650
CAN0029266883.104809885.106145.250-50RC600
CAN0030266918.004809915.606146.130-50RC500
CAN0031266881.004809837.006134.820-50DD1173
CAN0032266945.704809825.426166.500-50DD884
CAN0033266916.104809873.006170.540-50RC650
CAN0034267410.034809896.856055.610-90DD1556
Co-ordinate System: UTM Zone 13T (N)

 

Deeper Mineralisation

One of the aims of the drilling program was to test for deeper mineralisation, below the level that Union Pacific had conducted their drilling (around 600 feet on average). The last borehole, CAN0034, was drilled to a final depth of 1,556 feet and intersected mineralisation between 1,489.45 and 1,491.25 (1.80 feet). Where the equivalent gamma grade from the spectral gamma probe indicated an average grade of 343.8 ppm eU3O8, the chemical assay returned an average grade of 832.5 ppm U3O8 over the equivalent interval.

This outcome is encouraging for the potential of deeper mineralisation at Canning and elsewhere and needs to be investigated further. It also illustrates that the actual chemical grade and the equivalent gamma grades can vary significantly.

Table 3: Deeper interval comparison in borehole CAN0034

Borehole
ID
Chemical Assay IntervalEquivalent Spectral Gamma Probe Interval
From
(ft)
To
(ft)
Length
(ft)
U3O8
(ppm)
U3O8
(%)
GT
(ft%)
From
(ft)
To
(ft)
Length
(ft)
eU3O8
(ppm)
eU3O8
(%)
eGT
(ft%)
CAN0034
(DD)
1489.451491.251.80832.50.080.151489.451491.091.64343.80.030.06

 

Drilling

Drilling was undertaken by Harris Exploration using two diamond core (DD) rigs producing HQ (63.5 mm / 2.5 in) core diameter and 96 mm (3.78 in) in hole diameter, and one reverse circulation (RC) rig using a 140 mm (5.5 in) hammer bit. Core samples were packed into core trays and transported to Riverton for further processing. RC hole runs were drilled at 5 ft intervals and split on site by a rig-mounted cyclone splitter to produce two representative samples that were then transported to Riverton for further processing.

Downhole Logging

Downhole logging was performed by DGI Geoscience (DGI) using a combination of Spectral Gamma Ray (SGR) probe for gamma data, and Optical Televiewer and/or Acoustic Televiewer for structural data. The probes are manufactured by Mount Sopris Instruments with details as follows:

  • QL40 SGR BGO (Sx): Measures the energy of gamma emissions from natural sources within formations crossed by a borehole. It counts the number of gamma emissions at each energy level aiding in lithological determination and correlation. The Probe use a Bismuth Germanium Oxide scintillation crystal.

  • QL40 SGR 2G CeBr3 (Sx): Measures the energy of gamma emissions from natural sources within formations crossed by a borehole. It counts the number of gamma emissions at each energy level aiding in lithological determination and correlation. The probe uses a CeBr3 (Cerium Bromide) scintillation crystal.

  • QL 40 ABI 2G (At, Gr): Captures high-resolution, oriented images of the borehole wall, allowing the orientation of acoustically visible features to be determined. This includes fractures, bedding/rock fabric, breakouts, bedding planes and other structural features. Contains a built in Natural Gamma sensor that measures the gamma emissions from natural sources in the formation.

  • QL OBI 2G (Ot, Gr): Captures a high-resolution, oriented image of the borehole wall using a CMOS digital image sensor, allowing the orientation of features to be determined. This includes fractures, bedding/rock fabric, veins, lithological contacts, etc. Contains a built in Natural Gamma sensor that measures the gamma emissions from natural sources in the formation.

The spectral gamma probes measure the full energy spectrum of the gamma radiation emitted naturally from within the formations crossed by a borehole. A Full Spectrum Analysis (FSA) was performed on the recorded energy spectra. The FSA derived, in real time, the concentration of the three main radioisotopes 40K, 238U, 212Th, and thus also provided insight into the mineral composition of the formations. DGI also ran optical and acoustic televiewer, when hole conditions allow, to obtain downhole structural information. Borehole paths are being measured using a gyroscopic deviation tool.

Initial manufacturer calibration certificates were provided to Myriad by DGI. Downhole gamma measurements were checked for a repeatability by comparing down and up runs in the borehole. DGI provided conversion of API units measured by the spectral gamma probes to eU3O8 concentrations using a standard conversion theory and formula.

Drill Permits

The Copper Mountain project has 50 holes remaining under its current Drilling Notification permit, all located at Canning. The Company and its partner Rush Rare Metals Corp. have applied for a large-scale Plan of Operations permit across the entire project area. If approved, this permit will increase the number of permitted boreholes to 70, enabling the drilling of high priority prospects such as Lucky Cliff, where historical intercepts include 85 feet at 0.12% U3O8. Applications to amend the Plan of Operations will then be made from time to time as exploration advances.

Geological Logging, Sampling and Analysis

Description of geological features (lithology, structure and alteration) was undertaken prior to sampling according to standardized logging templates. Core sampling intervals were selected primarily on the basis of lithological changes and in conjunction with radiometric intervals identified from the downhole spectral gamma probe measurements (using a 100-ppm cut-off). Core sample lengths are limited to a maximum of 3 feet and adjusted to a minimum of 1 foot, where appropriate, to capture significant features in the core. Reverse Circulation samples were collected and split at the rig in 5-foot intervals, with samples being selected based on downhole spectral gamma probe measurements (using a 100-ppm cut-off).

Samples were prepared and analysed at Paragon Geochemical, located in Sparks, Nevada. Sample preparation involved inventory, weighing, drying at 100°C, crushing to 70% passing 10 mesh, riffle splitting 250 g and pulverizing to 85% passing 200 mesh. The requested sample analysis package for trace and ultra-trace level geochemistry was a Multi-Element Suite (48 elements) using a Multi-Acid digest with ICP-MS.

Quality Assurance and Quality Control

Quality Assurance was achieved by implementing a set of Standard Operating Procedures (SOP) for logging and sampling. Quality Control in sampling and analysis was achieved by insertion of Blanks, Standards (Certified Reference Materials) and laboratory split (Duplicates) at a minimum rate of 5% each. Inspection of QC data from the reported analyses shows adequate control of contamination and equipment calibration.

Radiometric Disequilibrium

Radiometric disequilibrium refers to the loss or gain of uranium and/or its daughter products (e.g. radon-222, bismuth-214 and radium-226) in the mineralised zone during geologic processes, which can disrupt the equilibrium between the parent isotope and the daughter products. Some historic reports state that closed can assays from Copper Mountain indicated little disequilibrium, however differences between gamma probe data and chemical assay were still observed. From the analysis data received, and comparison with the downhole spectral gamma probe data, it is apparent that disequilibrium has occurred within the Canning deposit. Individual grades are often higher, or lower, than those previously reported by the spectral gamma probe, implying that uranium, or its daughter products, have been mobile in the system since initial deposition. The average ratio of chemical assay intervals to spectral gamma probe assay intervals is ~1.2, indicating uranium content to be biased towards higher grades in the chemical assays, by as much as 20% on average. It is unclear at this stage if the disequilibrium observed results from radon interference or leaching and remobilisation of uranium or radium and other daughter products in the geological environment. Myriad will expand the physical sampling program to submit more samples to the laboratory to account for zones where higher uranium levels might be returned compared to low levels of spectral gamma measurement. Additional high resolution spectral analyses of samples will also be required to determine the specific cause of disequilibrium within the system.

Geological Background

Uranium mineralisation at Copper Mountain occurs in two distinct geologic environments:

  • Fracture-controlled uranium mineralisation hosted in Archaean-aged granite, syenite, isolated occurrences along the margins of diabase dikes and in association with meta-sediment inclusions in granite; and

  • As disseminations in coarse-grained sandstones and coatings on cobbles and boulders in the Tertiary-aged Teepee Trail Formation at the Arrowhead (Little Mo) mine and other localities.

Uranium mineralisation is thought to have resulted through supergene and hydrothermal enrichment processes. In both cases, the source of the uranium is thought to be the granites of the Owl Creek Mountains.

Historical Estimates

While Myriad has determined that the historical estimates described in this news release are relevant to the Copper Mountain Project Area and are reasonably reliable given the authors and circumstances of their preparation, and are suitable for public disclosure, readers are cautioned to not place undue reliance on these historical estimates as an indicator of current mineral resources or mineral reserves at the Project Area. A qualified person (as defined under NI 43-101) has not done sufficient work to classify any of the historical estimates as current mineral resources or mineral reserves, and Myriad is not treating the historical estimates as a current mineral resource or mineral reserve. Also, while the Copper Mountain Project Area contains all or most of each deposit referred to, some of the resources referred to may be located outside the current Copper Mountain Project Area. Furthermore, the estimates are decades old and based on drilling data for which the logs are, as of yet, predominantly unavailable. The historical resource estimates, therefore, should not be unduly relied upon.

Inherent limitations of the historical estimates include that the nature of the mineralisation (fracture hosted) makes estimation from drill data less reliable than other deposit types (e.g. those that are thick and uniform). From Myriad's viewpoint, limitations include that the Company has not been able to verify the data itself and that the estimate may be optimistic relative to subsequent work which applied a "delayed fission neutron" (DFN) factor to calculate grades. On the other hand, DFN is controversial, in that the approach is viewed by some experts as too conservative. Nevertheless, it was applied in later resource estimations by Union Pacific relating to Copper Mountain.

In order to verify the historical estimates and potentially re-state them as current resources, a program of digitization of available data is required. This must be followed by re-logging and/or re-drilling to generate new data to the extent necessary that it is comparable with the original data, or new data that can be used to establish the correlation and continuity of geology and grades between boreholes with sufficient confidence to estimate mineral resources.

Qualified Person

The scientific or technical information in this news release respecting the Company's Copper Mountain Project has been approved by George van der Walt, MSc., Pr.Sci.Nat., FGSSA, a Qualified Person as defined in National Instrument 43-101 - Standards of Disclosure for Mineral Projects. Mr. van der Walt is employed by The MSA Group (Pty) Ltd (MSA), a leading geological consultancy providing services to the minerals industry, based in Johannesburg, South Africa. He has more than 20 years industry experience and sufficient relevant experience in the type and style of mineralisation to report on exploration results.

About Myriad Uranium Corp.

Myriad Uranium Corp. is a uranium exploration company with an earnable 75% interest in the Copper Mountain Uranium Project in Wyoming, USA. Copper Mountain hosts several known uranium deposits and historic uranium mines, including the Arrowhead Mine which produced 500,000 lbs of eU3O8. Copper Mountain saw extensive drilling and development by Union Pacific during the late 1970s including the development of a mine plan to fuel a planned fleet of California Edison reactors. Operations ceased in 1980 before mining could commence due to falling uranium prices. Approximately 2,000 boreholes have been drilled at Copper Mountain and the Project Area has significant exploration upside. Union Pacific is estimated to have spent C$117 million (2024 dollars) exploring and developing Copper Mountain, generating significant historical resource estimates which are detailed here. The Company also recently acquired, subject to completing a geophysical survey this year, a 100% interest in the Red Basin Uranium Project in New Mexico, which has a near-surface historical resource (non-43-101) at grades from 1,700 to 3,100 ppm with significant upside potential. The announcement regarding the acquisition can be viewed here and a subsequent announcement regarding an expansion of the Company's acreage to encompass 800 of 1,050 historical boreholes in the basin can be viewed here. Our Crux Investor overview page including recent interviews can be viewed here. The Company's presentation can be viewed here . News releases regarding historical drilling can be viewed here and here.

Myriad also has a 50% interest in the Millen Mountain Property in Nova Scotia, Canada, with the other 50% held by Probe Gold Inc. For further information, please refer to Myriad's disclosure record on SEDAR+ (www.sedarplus.ca), contact Myriad by telephone at +1.604.418.2877, or refer to Myriad's website at www.myriaduranium.com.

Myriad Contacts:
Thomas Lamb
President and CEO
tlamb@myriaduranium.com

Forward-Looking Statements

This news release contains "forward-looking information" that is based on the Company's current expectations, estimates, forecasts and projections. This forward-looking information includes, among other things, the Company's business, plans, outlook and business strategy. The words "may", "would", "could", "should", "will", "likely", "expect," "anticipate," "intend", "estimate", "plan", "forecast", "project" and "believe" or other similar words and phrases are intended to identify forward-looking information. The reader is cautioned that assumptions used in the preparation of any forward-looking information may prove to be incorrect, including with respect to the Company's business plans respecting the exploration and development of the Company's mineral properties, the proposed work program on the Company's mineral properties and the potential and economic viability of the Company's mineral properties. Forward-looking information is subject to known and unknown risks, uncertainties and other factors that may cause the Company's actual results, level of activity, performance or achievements to be materially different from those expressed or implied by such forward-looking information. Such factors include, but are not limited to: changes in economic conditions or financial markets; increases in costs; litigation; legislative, environmental and other judicial, regulatory, political and competitive developments; and technological or operational difficulties. This list is not exhaustive of the factors that may affect our forward-looking information. These and other factors should be considered carefully, and readers should not place undue reliance on such forward-looking information. The Company does not intend, and expressly disclaims any intention or obligation to, update or revise any forward-looking information whether as a result of new information, future events or otherwise, except as required by applicable law.

The CSE has not reviewed, approved or disapproved the contents of this news release.

APPENDIX 1: Grade Interval Tables

a) Intervals with GT>0.3 (equivalent to >1,000 ppm U3O8 over >3 feet)

Borehole
ID
Chemical Assay Interval*PeakEquivalent Spectral Gamma Probe IntervalPeak
From
(ft)
To
(ft)
Length
(ft)
U3O8
(ppm)
U3O8
(%)
GT
(ft%)
U3O8
(ppm)
From
(ft)
To
(ft)
Length
(ft)
eU3O8
(ppm)
eU3O8
(%)
eGT
(ft%)
eU3O8
(ppm)
CAN0001
(DD)
159.41161.812.4033880.340.814764159.41161.702.2922400.220.512591
CAN0002
(DD)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0003
(RC)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0004
(DD)
225.64229.844.2053370.532.246898225.66229.934.2723540.241.013243
240.64249.949.3011900.121.112370240.10249.619.5110960.111.041363
253.54261.748.2022060.221.813726253.54261.748.2015100.151.242554
CAN0005
(RC)
390.00395.005.0028180.281.412818390.00395.005.0021860.221.092196
550.00560.0010.0015200.151.522040550.00560.0010.0018140.181.811857
CAN0006
(DD)
227.07230.073.0013640.140.411521226.32229.272.9526980.270.803416
265.35272.857.5043610.443.278325265.35272.907.5559370.594.487913
290.94291.941.0033020.330.333302291.92292.900.9825710.260.252571
312.26315.162.9011760.120.341176312.26315.212.9518780.190.551945
341.02355.0214.0014080.141.971981341.12355.2214.1023940.243.384138
442.20447.405.2021130.211.104693441.82447.065.2431420.311.655011
CAN0007
(RC)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0008
(DD)
278.89285.396.5028290.281.845660278.80285.366.5618710.191.233096
317.83319.531.7018990.190.321899317.83319.471.6411510.120.191151
334.86349.6614.8019640.202.913219334.89349.6514.7615580.162.302100
CAN0009
(RC)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0010
(DD)
71.8075.403.6012050.120.43128571.8375.443.6111200.110.401364
81.0089.108.109090.090.74114781.0289.228.208200.080.67774
271.09274.493.4021310.210.722417271.26274.543.2817750.180.581913
556.99562.795.8016380.160.951934556.94562.855.9110650.110.631133
CAN0011
(RC)
295.00300.005.0014390.140.721439295.00300.005.003560.140.72358
320.00330.0010.0017690.181.771899320.00330.0010.002770.030.28301
385.00390.005.0018990.190.951899385.00390.005.006840.070.34877
CAN0012
(RC)
Below applied grade-thickness (GT > 0.3) product cut-off (equivalent of >1000 ppm U3O8 over >3 feet)
CAN0013
(DD)
298.81310.6111.8016890.171.992146298.81310.6211.8115300.151.812215
CAN0014
(RC)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0015
(DD)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0016
(RC)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0017
(DD)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0018
(DD)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
Borehole
ID
Chemical Assay Interval*PeakEquivalent Spectral Gamma Probe IntervalPeak
From
(ft)
To
(ft)
Length
(ft)
U3O8
(ppm)
U3O8
(%)
GT
(ft%)
U3O8
(ppm)
From
(ft)
To
(ft)
Length
(ft)
eU3O8
(ppm)
eU3O8
(%)
eGT
(ft%)
eU3O8
(ppm)
CAN0019
(RC)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0020
(DD)
446.18448.482.3014080.140.321439445.42447.722.3014330.140.331600
CAN0021
(RC)
295.00305.0010.0015110.151.512417295.00305.0010.0018020.181.802937
330.00335.005.0017690.180.881769330.00335.005.0011410.110.571595
CAN0022
(RC)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0023
(DD)
318.16320.462.3013680.140.311368318.16320.462.308310.080.19831
444.11456.2112.1014220.141.721816444.11456.2512.1413760.141.671762
CAN0024
(DD)
326.69337.2910.6030310.303.214528326.69337.1810.4925590.262.683615
CAN0025
(RC)
85.0090.005.0011580.120.58115885.0090.005.0011340.110.571252
CAN0026
(RC)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0027
(DD)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0028
(DD)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0029
(RC)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0030
(RC)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0031
(DD)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0032
(DD)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0033
(RC)
Below applied grade-thickness product cut-off (GT > 0.3, equivalent to >1000 ppm U3O8 over >3 feet)
CAN0034
(DD)
144.98157.7812.8012540.131.611698144.98157.7712.7911430.111.461391
224.68226.782.1017810.180.371781224.68226.651.975600.060.11560

 

Notes: * Grade intervals corrected to match downhole log intervals.
1) The interval lengths are "down the hole" and may not represent true width intervals as the exact nature of the mineralization distribution has not been determined yet. However, most of the holes were drilled at an inclination of 50 degrees to test a model that indicates steeply dipping mineralisation.
2) eU
3O8 is the radiometric equivalent U3O8 derived from a calibrated total gamma downhole probe.
3) U
3O8 is the chemical assay of mineralized split core samples or RC cuttings.
4) Core sampling was conducted at 3 feet intervals, adjusted to minimum of 1 foot, where appropriate.
5) Reverse Circulation sampling was conducted at 5 feet intervals, according to the drilling procedure.
6) Assay interval depths have been adjusted to spectral gamma probe depths, where appropriate.
7) Intervals were composited above a cut-off grade of 1,000 ppm U
3O8, with grade below cut-off less than 1 foot being included in the total interval.
8) Abbreviations: DD = Diamond Drill, RC = Reverse Circulation.
9) "High-grade uranium" is defined by the Company as composite results with >1,000 ppm U
3O8 and no greater than 1-foot continuous internal dilution.

b) Intervals with GT>0.15 (equivalent to >500 ppm U3O8 over >3 feet)

Borehole
ID
Chemical Assay Interval*Equivalent Spectral Gamma Probe Interval
From
(ft)
To
(ft)
Length
(ft)
U3O8
(ppm)
U3O8
(%)
GT
(ft%)
From
(ft)
To
(ft)
Length
(ft)
eU3O8
(ppm)
eU3O8
(%)
eGT
(ft%)
CAN0001
(DD)
158.40162.404.002306.50.230.92158.10162.033.931746.40.170.69
CAN0002
(DD)
347.68348.781.101945.70.190.21347.68348.991.31433.30.040.06
CAN0003
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0004
(DD)
222.64234.4411.802369.70.242.80222.71234.5211.811394.60.141.65
235.74238.442.70593.10.060.16235.83238.462.63953.30.100.25
240.64249.949.301190.30.121.11240.10249.619.511095.70.111.04
253.54266.4412.901571.00.162.03253.54266.6613.121115.00.111.46
287.82290.022.20871.40.090.19287.98290.282.30565.60.060.13
CAN0005
(RC)
385.00400.0015.001488.50.152.23385.00400.0015.001086.00.111.63
545.00575.0030.00941.00.092.82545.00575.0030.001365.10.144.10
CAN0006
(DD)
132.48139.557.08721.10.070.51132.51139.737.221703.00.171.23
150.22152.972.75843.10.080.23150.22152.852.631020.80.100.27
173.51176.212.70654.70.070.18173.51176.142.631463.40.150.38
225.57230.074.501134.40.110.51225.66230.264.602102.60.210.97
265.35272.857.504360.50.443.27265.35272.907.555936.50.594.48
290.94291.941.003301.80.330.33291.92292.900.982571.10.260.25
312.26320.668.401040.90.100.87312.26320.788.521733.40.171.48
341.02355.0214.001407.70.141.97341.12355.2214.102393.70.243.38
377.86380.863.00805.40.080.24377.86380.812.951578.60.160.47
408.70416.808.10660.00.070.53408.69416.898.201519.00.151.25
430.99432.591.601145.00.110.18430.99432.631.641396.50.140.23
439.20449.3010.101364.50.141.38439.12449.3610.242107.20.212.16
454.30456.902.601129.70.110.29454.28456.902.622276.10.230.60
CAN0007
(RC)
370.00375.005.00561.30.060.28370.00375.005.00234.50.020.12
455.00460.005.00758.20.080.38455.00460.005.00864.90.090.43
465.00470.005.00722.80.070.36465.00470.005.00461.30.050.23
510.00520.0010.00610.20.060.61510.00520.0010.00531.20.050.53
CAN0008
(DD)
278.89287.398.502290.40.231.95278.89287.338.441509.20.151.27
317.18320.483.301381.10.140.46317.18320.463.281042.60.100.34
332.26355.6623.401467.00.153.43332.26355.5523.291191.60.122.78
CAN0009
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0010
(DD)
71.8075.403.601204.70.120.4371.8375.443.611120.00.110.40
81.0089.108.10909.40.090.7481.0289.228.20819.60.080.67
269.29277.498.201292.00.131.06269.29277.498.201150.60.120.94
289.00294.005.001017.60.100.51287.66292.584.92603.50.060.30
553.99562.798.801345.20.131.18553.99562.858.861012.70.100.90
CAN0011
(RC)
200.00215.0015.00699.30.071.05200.00215.0015.00303.30.030.45
245.00260.0015.00614.00.060.92245.00260.0015.00257.90.030.39
295.00330.0035.00988.30.103.46295.00330.0035.00248.90.020.87
380.00395.0015.001095.50.111.64380.00395.0015.00398.20.040.60
Borehole
ID
Chemical Assay Interval*Equivalent Spectral Gamma Probe Interval
From
(ft)
To
(ft)
Length
(ft)
U3O8
(ppm)
U3O8
(%)
GT
(ft%)
From
(ft)
To
(ft)
Length
(ft)
eU3O8
(ppm)
eU3O8
(%)
eGT
(ft%)
CAN0012
(RC)
330.00340.0010.00633.80.060.63330.00340.0010.00540.30.050.54
425.00430.005.00570.70.060.29425.00430.005.00416.90.040.21
CAN0013
(DD)
290.94310.9420.001327.00.132.65290.94310.9420.001250.90.132.50
313.54320.146.60650.30.070.43313.57320.136.56448.70.040.29
322.74326.043.30612.00.060.20322.75326.033.28718.60.070.24
328.00335.907.90871.50.090.69328.00335.877.871233.50.120.97
CAN0014
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0015
(DD)
167.28179.3812.10615.30.060.74167.28179.4212.14378.40.040.46
199.10208.609.50545.80.050.52199.10208.619.51347.10.030.33
240.10243.103.00665.10.070.20240.10243.052.95346.00.030.10
CAN0016
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0017
(DD)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0018
(DD)
269.94272.742.80832.50.080.23269.94272.572.63566.60.060.15
CAN0019
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0020
(DD)
440.18448.488.30743.70.070.62440.18448.388.20923.40.090.76
486.10489.403.30626.00.060.21486.10489.383.28308.60.030.10
721.93723.932.00558.90.060.11721.93723.901.97384.70.040.08
736.00738.802.80516.50.050.14736.03738.982.95292.50.030.09
CAN0021
(RC)
295.00305.0010.001510.60.151.51295.00305.0010.001801.70.181.80
330.00335.005.001768.80.180.88330.00335.005.001141.20.110.57
CAN0022
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0023
(DD)
315.86321.365.50957.60.100.53315.86321.445.58611.10.060.34
339.15344.655.50592.40.060.33339.15344.735.58381.10.040.21
370.64373.843.20619.10.060.20370.64373.923.28690.50.070.23
442.47457.8715.401259.90.131.94442.47457.8915.421193.80.121.84
CAN0024
(DD)
326.69337.2910.603030.50.303.21326.69337.1810.492558.50.262.68
CAN0025
(RC)
85.0095.0010.001010.60.101.0185.0095.0010.00986.60.100.99
CAN0026
(RC)
265.00270.005.00496.40.050.25265.00270.005.00361.00.040.18
CAN0027
(DD)
502.50504.001.501403.20.140.21502.50504.141.64250.00.030.04
CAN0028
(DD)
205.00215.2010.20546.70.050.56205.00215.1710.17531.50.050.54
CAN0029
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0030
(RC)
335.00340.005.00793.60.080.40335.00340.005.001056.90.110.53
435.00440.005.00847.80.080.42435.00440.005.001060.80.110.53
Borehole
ID
Chemical Assay Interval*Equivalent Spectral Gamma Probe Interval
From
(ft)
To
(ft)
Length
(ft)
U3O8
(ppm)
U3O8
(%)
GT
(ft%)
From
(ft)
To
(ft)
Length
(ft)
eU3O8
(ppm)
eU3O8
(%)
eGT
(ft%)
CAN0031
(DD)
342.80348.806.00730.50.070.44342.76348.665.90662.60.070.39
381.14386.044.90726.30.070.36381.14386.064.92645.20.060.32
432.63434.932.30908.00.090.21432.63434.932.30500.90.050.12
792.45803.6511.20533.10.050.60792.45803.6011.15456.40.050.51
CAN0032
(DD)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0033
(RC)
Below applied grade-thickness product cut-off (GT > 0.15, equivalent to >500 ppm U3O8 over >3 feet)
CAN0034
(DD)
111.85114.853.00533.00.050.16111.85114.802.95339.10.030.10
117.75120.652.90515.30.050.15117.75120.702.95578.00.060.17
144.32159.2214.901151.50.121.72144.32159.0814.761080.20.111.59
222.71227.114.401195.40.120.53222.71226.984.27490.20.050.21
1489.451491.251.80832.50.080.151489.451491.091.64343.80.030.06

 

Notes: * Grade intervals corrected to match downhole log intervals.
1) The interval lengths are "down the hole" and may not represent true width intervals as the exact nature of the mineralization distribution has not been determined yet. However, most of the holes were drilled at an inclination of 50 degrees to test a model that indicates steeply dipping mineralisation.
2) eU
3O8 is the radiometric equivalent U3O8 derived from a calibrated total gamma downhole probe.
3) U
3O8 is the chemical assay of mineralized split core samples or RC cuttings.
4) Core sampling was conducted at 3 feet intervals, adjusted to minimum of 1 foot, where appropriate.
5) Reverse Circulation sampling was conducted at 5 feet intervals, according to the drilling procedure.
6) Assay interval depths have been adjusted to spectral gamma probe depths, where appropriate.
7) Intervals were composited above a cut-off grade of 500 ppm U
3O8, with grade below cut-off less than 1 foot being included in the total interval.
8) Abbreviations: DD = Diamond Drill, RC = Reverse Circulation.
9) "High-grade uranium" is defined by the Company as composite results with >1000 ppm U
3O8 and no greater than 1-foot continuous internal dilution.

c) Intervals with GT>0.06 (equivalent to >200 ppm U3O8 over >3 feet)

Borehole
ID
Chemical Assay Interval*Equivalent Spectral Gamma Probe Interval
From
(ft)
To
(ft)
Length
(ft)
U3O8
(ppm)
U3O8
(%)
GT
(ft%)
From
(ft)
To
(ft)
Length
(ft)
eU3O8
(ppm)
eU3O8
(%)
eGT
(ft%)
CAN0001
(DD)
124.00127.303.30244.10.020.08123.98127.263.28156.60.020.05
136.80143.706.90395.60.040.27136.77143.666.89499.50.050.34
152.80162.409.601134.30.111.09152.85162.369.51950.10.100.90
217.80222.704.90233.40.020.11217.79222.714.92219.60.020.11
288.31294.225.91420.50.040.25288.31294.225.91497.20.050.29
328.98331.942.95426.90.040.13328.98331.942.95312.10.030.09
349.32354.905.58313.50.030.17349.32354.905.58161.80.020.09
CAN0002
(DD)
267.32272.625.30337.70.030.18267.32272.905.58342.30.030.19
323.08325.182.10558.90.060.12323.08325.382.30356.70.040.08
335.22339.424.20434.30.040.18335.22339.484.26518.00.050.22
346.70350.603.90726.60.070.28346.70350.633.93278.10.030.11
358.18362.684.50302.20.030.14358.18362.774.59339.20.030.16
CAN0003
(RC)
285.00290.005.00266.50.030.13285.00290.005.00540.10.050.27
335.00350.0015.00205.20.020.31335.00350.0015.00392.00.040.59
355.00360.005.00226.40.020.11355.00360.005.00367.90.040.18
415.00420.005.00331.40.030.17No SGR values available
CAN0004
(DD)
222.64266.4443.801430.20.146.26222.71266.6643.951073.40.114.72
277.82293.0215.20351.00.040.53277.82292.9015.08314.90.030.47
304.38308.884.50393.70.040.18304.38308.984.60479.60.050.22
CAN0005
(RC)
340.00350.0010.00299.50.030.30340.00350.0010.00295.70.030.30
385.00405.0020.001166.80.122.33385.00405.0020.00844.10.081.69
410.00420.0010.00208.00.020.21410.00420.0010.00225.20.020.23
515.00520.005.00470.50.050.24515.00520.005.00182.20.020.09
525.00530.005.00338.40.030.17525.00530.005.00269.80.030.13
545.00585.0040.00756.20.083.02545.00585.0040.001110.20.114.44
CAN0006
(DD)
130.55143.0512.50556.90.060.70130.54143.0112.471285.80.131.60
149.25153.704.45660.70.070.29149.24153.834.59851.10.090.39
173.51181.217.70451.10.050.35173.51181.387.871606.60.161.26
199.42201.922.50311.10.030.08199.42202.052.63456.80.050.12
223.37232.078.70765.40.080.67223.37232.228.851389.30.141.23
265.35272.857.504360.50.443.27265.35272.907.555936.50.594.48
290.94293.943.001238.20.120.37290.94293.892.951680.50.170.50
303.07326.5723.50578.50.061.36303.07326.6923.621003.60.102.37
335.22361.0225.80912.30.092.35335.22361.1325.911800.90.184.67
374.58382.187.60540.00.050.41374.58382.127.541217.20.120.92
408.70416.808.10660.00.070.53408.69416.898.201519.00.151.25
430.00432.902.90808.80.080.23430.01432.962.951092.30.110.32
439.20456.9017.70999.10.101.77439.19456.9017.711781.90.183.16
CAN0007
(RC)
312.25317.255.00333.70.030.17312.26317.184.92363.40.040.18
365.00375.0010.00387.40.040.39365.00375.0010.00167.50.020.17
455.00460.005.00758.20.080.38455.00460.005.00864.90.090.43
465.00470.005.00722.80.070.36465.00470.005.00461.30.050.23
480.00485.005.00365.60.040.18480.00485.005.00336.10.030.17
510.00525.0015.00494.90.050.74510.00525.0015.00450.00.050.68
535.00540.005.00372.60.040.19535.00540.005.00670.30.070.34
Borehole
ID
Chemical Assay Interval*Equivalent Spectral Gamma Probe Interval
From
(ft)
To
(ft)
Length
(ft)
U3O8
(ppm)
U3O8
(%)
GT
(ft%)
From
(ft)
To
(ft)
Length
(ft)
eU3O8
(ppm)
eU3O8
(%)
eGT
(ft%)
CAN0008
(DD)
221.35227.356.00340.80.030.20221.35227.305.95305.20.030.18
277.49287.399.902024.90.202.00277.49287.339.841509.20.151.49
317.18320.483.301381.10.140.46317.18320.463.281042.60.100.34
332.26355.6623.401467.00.153.43332.26355.5523.291191.60.122.78
399.80402.102.30296.00.030.07399.83402.132.30147.40.010.03
523.84526.843.00219.30.020.07523.84526.843.00176.50.020.05
553.34558.545.20466.90.050.24553.34558.585.24399.00.040.21
574.66576.962.30324.30.030.07574.66576.952.29232.10.020.05
CAN0009
(RC)
Below applied grade-thickness product cut-off (GT > 0.06, equivalent to >200 ppm U3O8 over >3 feet)
CAN0010 (DD)71.8075.403.601204.70.120.4371.8375.443.611120.00.110.40
78.0090.6012.60672.50.070.8578.0690.5312.47645.90.060.81
118.40131.9013.50380.50.040.51118.41131.8613.45330.20.030.44
269.90284.1014.20868.20.091.23269.94284.0514.11741.30.071.05
286.00294.008.00786.40.080.63286.02293.897.87529.00.050.42
303.40306.703.30337.30.030.11303.40306.683.28141.40.010.05
431.30435.604.30351.20.040.15431.32435.584.26203.50.020.09
553.40562.208.801345.20.131.18553.34562.198.851006.70.100.89
CAN0011
(RC)
200.00275.0075.00435.00.043.26200.00275.0075.00254.00.031.91
295.00300.005.001438.60.140.72295.00300.005.00355.50.140.72
290.00345.0055.00780.50.084.29290.00345.0055.00238.20.021.31
350.00355.005.00219.30.020.11350.00355.005.00186.80.020.09
360.00365.005.00373.80.040.19360.00365.005.00250.20.030.13
370.00395.0025.00796.00.081.99370.00395.0025.00321.20.030.80
CAN0012
(RC)
330.00340.0010.00633.80.060.63330.00340.0010.00540.30.050.54
360.00365.005.00225.20.020.11360.00365.005.00127.00.010.06
370.00375.005.00204.00.020.10370.00375.005.0070.30.010.04
425.00435.0010.00399.20.040.40425.00435.0010.00283.40.030.28
445.00450.005.00237.00.020.12445.00450.005.0048.60.000.02
CAN0013
(DD)
290.94336.8445.90916.30.094.21290.94336.8645.92961.60.104.42
620.58626.085.50335.80.030.18620.58626.155.57290.70.030.16
CAN0014
(RC)
555.00565.0010.00260.00.030.26555.00565.0010.00490.20.050.49
570.00575.005.00217.00.020.11570.00575.005.00952.20.100.48
695.00700.005.00316.00.030.16No SGR values available
CAN0015
(DD)
50.8056.105.30179.00.020.0950.8456.095.25150.30.020.08
132.50135.102.60273.60.030.07132.51135.142.63122.10.010.03
166.00183.7017.70524.30.050.93165.97183.6817.71329.30.030.58
189.60211.9022.30419.30.040.93189.58211.8922.31304.20.030.68
217.14220.042.90306.20.030.09217.14220.092.95376.40.040.11
229.60283.7054.10264.40.031.43229.60283.7254.12232.80.021.26
675.00679.904.90166.40.020.08675.02679.944.92212.60.020.10
708.80712.703.90159.10.020.06708.81712.743.93138.60.010.05
717.66722.865.20347.90.030.18717.66722.915.25333.80.030.18
784.30787.503.20327.80.030.10784.25787.533.28152.00.020.05
Borehole
ID
Chemical Assay Interval*Equivalent Spectral Gamma Probe Interval
From
(ft)
To
(ft)
Length
(ft)
U3O8
(ppm)
U3O8
(%)
GT
(ft%)
From
(ft)
To
(ft)
Length
(ft)
eU3O8
(ppm)
eU3O8
(%)
eGT
(ft%)
CAN0016
(RC)
535.00540.005.00205.20.020.10535.00540.005.00156.30.020.08
CAN0017
(DD)
747.18757.6810.50222.70.020.23747.18757.6810.50178.70.020.19
CAN0018
(DD)
269.94272.742.80832.50.080.23269.94272.572.63566.60.060.15
CAN0019
(RC)
215.00220.005.00370.30.040.19215.00220.005.00193.40.020.10
225.00230.005.00213.40.020.11225.00230.005.00376.10.040.19
255.00260.005.00229.90.020.11255.00260.005.00399.00.040.20
270.00280.0010.00336.10.030.34270.00280.0010.00590.20.060.59
295.00305.0010.00304.80.030.30295.00305.0010.00506.10.050.51
585.00590.005.00370.30.040.19585.00590.005.00574.20.060.29
CAN0020
(DD)
438.86448.9610.10673.20.070.68438.86449.0310.17822.90.080.84
486.10489.403.30626.00.060.21486.10489.383.28308.60.030.10
517.91520.612.70246.50.020.07517.91520.862.95211.20.020.06
721.93723.932.00558.90.060.11721.93723.901.97384.70.040.08
733.00740.407.40361.30.040.27733.08740.307.22215.00.020.16
CAN0021
(RC)
127.50132.505.00319.60.030.16127.59132.514.92320.30.030.16
225.00230.005.00327.80.030.16225.00230.005.00242.30.020.12
295.00315.0020.00926.90.091.85295.00315.0020.001047.00.102.09
320.00340.0020.00613.20.061.23320.00340.0020.00535.50.051.07
CAN0022
(RC)
Below applied grade-thickness product cut-off (GT > 0.06, equivalent to >200 ppm U3O8 over >3 feet)
CAN0023
(DD)
280.44285.445.00296.00.030.15280.44285.364.92208.00.020.10
297.17306.078.90345.60.030.31297.17306.028.85225.80.020.20
316.19321.695.50957.60.100.53316.19321.775.58608.70.060.34
334.89344.599.70457.70.050.44334.89344.739.84320.10.030.31
370.64373.843.20619.10.060.20370.64373.923.28690.50.070.23
442.14461.1419.001095.90.112.08442.14461.1719.031016.50.101.93
CAN0024
(DD)
254.53256.832.30584.90.060.13254.53256.822.29531.50.050.12
325.05337.8512.802547.00.253.26325.05337.8412.792241.30.222.87
CAN0025
(RC)
80.00100.0020.00669.50.071.3480.00100.0020.00663.30.071.33
265.00270.005.00219.30.020.11265.00270.005.00207.90.020.10
285.00290.005.00257.10.030.13285.00290.005.00477.70.050.24
CAN0026
(RC)
205.00215.0010.00279.50.030.28205.00215.0010.00233.20.020.23
240.00250.0010.00192.20.020.19240.00250.0010.00173.10.020.17
265.00275.0010.00356.70.040.36265.00275.0010.00273.80.030.27
280.00290.0010.00316.60.030.32280.00290.0010.00441.10.040.44
295.00305.0010.00207.50.020.21295.00305.0010.00208.90.020.21
CAN0027
(DD)
329.31331.612.30320.70.030.07329.31331.612.30262.40.030.06
342.76346.663.90260.10.030.10342.76346.703.9426.50.000.01
366.00374.308.30265.00.030.22366.05374.258.20334.10.030.27
455.59458.893.30446.90.040.15455.59458.873.28375.20.040.12
462.80465.803.00303.10.030.09462.81465.762.95343.80.030.10
492.33495.333.00372.60.040.11492.33495.282.95486.70.050.14
502.50504.001.501403.20.140.21502.50504.141.64250.00.030.04
Borehole
ID
Chemical Assay Interval*Equivalent Spectral Gamma Probe Interval
From
(ft)
To
(ft)
Length
(ft)
U3O8
(ppm)
U3O8
(%)
GT
(ft%)
From
(ft)
To
(ft)
Length
(ft)
eU3O8
(ppm)
eU3O8
(%)
eGT
(ft%)
CAN0028
(DD)
198.44214.4416.00437.20.040.70198.44214.5116.07470.20.050.76
277.16286.969.80380.00.040.37277.16287.009.84472.80.050.47
567.44571.143.70565.70.060.21567.44571.053.61559.60.060.20
CAN0029
(RC)
260.00300.0040.00309.10.031.24260.00300.0040.00406.40.041.63
CAN0030
(RC)
210.00235.0025.00239.60.020.60210.00235.0025.00282.30.030.71
330.00350.0020.00417.40.040.83330.00350.0020.00700.20.071.40
360.00365.005.00209.90.020.10360.00365.005.00179.80.020.09
385.00420.0035.00191.00.020.67385.00420.0035.00292.60.031.02
435.00445.0010.00527.10.050.53435.00445.0010.00590.50.060.59
CAN0031
(DD)
299.46311.8612.40304.80.030.38299.46311.9312.47255.00.030.32
342.10354.6012.50565.00.060.71342.10354.5712.47562.60.060.70
368.90371.903.00286.50.030.09369.00371.952.95268.20.030.08
379.82402.9223.10334.60.030.77379.82402.7822.96553.70.061.27
415.58419.283.70275.70.030.10415.58419.183.60680.30.070.24
431.65439.257.60464.70.050.35431.65439.197.54410.20.040.31
456.25458.552.30248.80.020.06456.25458.542.29399.60.040.09
782.28803.2821.00353.40.040.74782.28803.2720.99347.00.030.73
811.80813.802.00292.40.030.06811.80813.771.97107.40.010.02
829.50832.503.00201.60.020.06829.51832.462.95258.20.030.08
1006.001015.509.50322.90.030.311005.981015.499.51393.60.040.37
1023.691025.591.90535.40.050.101023.691025.661.97344.80.030.07
CAN0032
(DD)
418.20426.007.80200.90.020.16418.20426.077.87184.80.020.15
777.36784.266.90275.80.030.19777.36784.256.89257.00.030.18
807.21810.513.30463.80.050.15807.21810.493.28276.90.030.09
CAN0033
(RC)
390.00395.005.00212.30.020.11390.00395.005.00408.80.040.20
415.00435.0020.00282.70.030.57415.00435.0020.00361.90.040.72
CAN0034
(DD)
111.52132.3220.80386.20.040.80111.52132.1820.66364.80.040.75
137.43167.6330.20744.00.072.25137.43167.6130.18681.80.072.06
222.71227.114.401195.40.120.53222.71226.984.27490.20.050.21
334.89342.197.30430.90.040.31334.89342.107.21255.50.030.18
440.83443.432.60456.40.050.12440.83443.462.63207.80.020.05
541.53548.537.00482.00.050.34541.53548.426.89168.40.020.12
1463.211466.112.90362.00.040.101463.211466.162.95207.60.020.06
1489.451491.251.80832.50.080.151489.451491.091.64343.80.030.06

 

Notes: * Grade intervals corrected to match downhole log intervals.
1) The interval lengths are "down the hole" and may not represent true width intervals as the exact nature of the mineralization distribution has not been determined yet. However, most of the holes were drilled at an inclination of 50 degrees to test a model that indicates steeply dipping mineralisation.
2) eU
3O8 is the radiometric equivalent U3O8 derived from a calibrated total gamma downhole probe.
3) U
3O8 is the chemical assay of mineralized split core samples or RC cuttings.
2) Core sampling was conducted at 3 feet intervals, adjusted to minimum of 1 foot, where appropriate.
3) Reverse Circulation sampling was conducted at 5 feet intervals, according to the drilling procedure.
4) Assay interval depths have been adjusted to spectral gamma probe depths, where appropriate.
5) Intervals were composited above a cut-off grade of 200 ppm U
3O8, with grade below cut-off less than 1 foot being included in the total interval.
6) Abbreviations: DD = Diamond Drill, RC = Reverse Circulation.
7) "High-grade uranium" is defined by the Company as composite results with >1000 ppm U
3O8 and no greater than 1-foot continuous internal dilution.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/255222

FAQ

What were the key findings from Myriad Uranium's (MYRUF) chemical assays at Copper Mountain?

Chemical assays showed grades up to 60% higher at 1,000 ppm cut-off compared to probe readings, supporting the upper range of historical 15-30 million pound U3O8 estimate and suggesting potential for several hundred million pounds.

How much higher were MYRUF's chemical assay grades compared to probe readings?

The chemical assay grades were 60% higher at 1,000 ppm cut-off, 50% higher at 500 ppm cut-off, and 20% higher at 200 ppm cut-off compared to probe readings.

What is the significance of Myriad Uranium's deep intercepts at Copper Mountain?

The deep intercepts, including 832.5 ppm U3O8 at 1,489 feet, suggest potential for additional mineralization beyond the historical 600-foot depth limit, supporting the project's larger resource potential.

How does MYRUF's Copper Mountain mineralization compare to other uranium deposits?

The mineralization shows similarities to Beaver Lodge in Athabasca basin, with association to faults and fractures in basement granite and amphibolite schists, suggesting potential for world-class deposits.

What was the scope of Myriad Uranium's drilling program at Copper Mountain?

The program included 34 holes drilled in late 2024, focusing on the Canning Deposit, which was identified as the largest mineralized area in Union Pacific's 1979 mine plan.
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