Thunder Mountain Gold Launches Phase II Field Exploration at South Mountain Project, Idaho
Thunder Mountain Gold (OTCQB:THMG) has initiated Phase II field exploration at its South Mountain Project in Owyhee County, Idaho. The program features advanced Magnetotelluric (MT) surveys and comprehensive geophysical work targeting deep porphyry systems and expanding known Carbonate Replacement Deposits (CRD)/skarn mineralization.
The company has assembled a distinguished technical team including John Reynolds (Durango Geophysical), Rich Leveille (former Freeport-McMoRan SVP), and other industry experts. The South Mountain Project, located 70 miles southwest of Boise, has historical production of 53,642 tons with average grades of 14.5% Zn, 363.42 g/t Ag, 1.98 g/t Au, 1.4% Cu, and 2.4% Pb.
MT and IP surveys will continue through late summer, with interpretation and 3D modeling planned for Q4 2025. Drill targeting is underway for a potential late-2025 or early-2026 program.
Thunder Mountain Gold (OTCQB:THMG) ha avviato la Fase II di esplorazione sul campo presso il suo progetto South Mountain nella contea di Owyhee, Idaho. Il programma prevede avanzate indagini Magnetotelluriche (MT) e un lavoro geofisico completo mirato a sistemi porfirici profondi e all'espansione della mineralizzazione nota di Depositi da Sostituzione Carbonatica (CRD)/skarn.
L'azienda ha costituito un team tecnico di alto livello che include John Reynolds (Durango Geophysical), Rich Leveille (ex SVP di Freeport-McMoRan) e altri esperti del settore. Il progetto South Mountain, situato a 70 miglia a sud-ovest di Boise, vanta una produzione storica di 53.642 tonnellate con grade medie di 14,5% Zn, 363,42 g/t Ag, 1,98 g/t Au, 1,4% Cu e 2,4% Pb.
Le indagini MT e IP proseguiranno fino alla fine dell'estate, con interpretazioni e modellazione 3D previste per il quarto trimestre del 2025. È in corso l'individuazione degli obiettivi di perforazione per un possibile programma tra la fine del 2025 e l'inizio del 2026.
Thunder Mountain Gold (OTCQB:THMG) ha iniciado la Fase II de exploración de campo en su Proyecto South Mountain en el condado de Owyhee, Idaho. El programa incluye avanzadas encuestas Magnetotelúricas (MT) y un trabajo geofísico exhaustivo dirigido a sistemas de pórfidos profundos y a la expansión de la mineralización conocida de Depósitos por Reemplazo de Carbonatos (CRD)/skarn.
La compañía ha reunido un equipo técnico destacado que incluye a John Reynolds (Durango Geophysical), Rich Leveille (ex SVP de Freeport-McMoRan) y otros expertos de la industria. El Proyecto South Mountain, ubicado a 70 millas al suroeste de Boise, cuenta con una producción histórica de 53,642 toneladas con leyes promedio de 14.5% Zn, 363.42 g/t Ag, 1.98 g/t Au, 1.4% Cu y 2.4% Pb.
Las encuestas MT e IP continuarán hasta finales del verano, con interpretación y modelado 3D planificados para el cuarto trimestre de 2025. Se está trabajando en la definición de objetivos de perforación para un posible programa a finales de 2025 o principios de 2026.
Thunder Mountain Gold (OTCQB:THMG)는 아이다호주 오와이히 카운티에 위치한 South Mountain 프로젝트에서 2단계 현장 탐사를 시작했습니다. 이번 프로그램은 심부 포피리 시스템과 알려진 탄산염 대체 광상(CRD)/스카른 광물화를 확장하기 위한 고급 자기텔루릭(MT) 조사와 종합적인 지구물리학 작업을 포함합니다.
회사는 John Reynolds(Durango Geophysical), Rich Leveille(전 Freeport-McMoRan 부사장) 및 기타 업계 전문가들로 구성된 뛰어난 기술팀을 구성했습니다. South Mountain 프로젝트는 보이시에서 남서쪽으로 70마일 떨어진 위치에 있으며, 과거 생산량은 53,642톤이고 평균 등급은 아연 14.5%, 은 363.42 g/t, 금 1.98 g/t, 구리 1.4%, 납 2.4%입니다.
MT 및 IP 조사는 늦여름까지 계속되며, 2025년 4분기에 해석 및 3D 모델링이 계획되어 있습니다. 2025년 말 또는 2026년 초 프로그램을 위한 시추 목표 설정이 진행 중입니다.
Thunder Mountain Gold (OTCQB:THMG) a lancé la phase II d'exploration sur le terrain de son projet South Mountain dans le comté d'Owyhee, Idaho. Le programme comprend des levés avancés Magnétotelluriques (MT) et un travail géophysique complet ciblant des systèmes porphyriques profonds et l'expansion des minéralisations connues de Dépôts par Remplacement Carbonaté (CRD)/skarn.
L'entreprise a réuni une équipe technique de renom comprenant John Reynolds (Durango Geophysical), Rich Leveille (ancien SVP de Freeport-McMoRan) et d'autres experts du secteur. Le projet South Mountain, situé à 70 miles au sud-ouest de Boise, possède une production historique de 53 642 tonnes avec des teneurs moyennes de 14,5% Zn, 363,42 g/t Ag, 1,98 g/t Au, 1,4% Cu et 2,4% Pb.
Les levés MT et IP se poursuivront jusqu'à la fin de l'été, avec une interprétation et une modélisation 3D prévues pour le quatrième trimestre 2025. La définition des cibles de forage est en cours pour un programme potentiel fin 2025 ou début 2026.
Thunder Mountain Gold (OTCQB:THMG) hat die Phase-II-Feldexploration an seinem South Mountain Projekt im Owyhee County, Idaho, gestartet. Das Programm beinhaltet fortgeschrittene Magnetotellurische (MT) Untersuchungen und umfassende geophysikalische Arbeiten, die auf tiefe Porphyrsysteme abzielen und bekannte Carbonat-Ersatzlagerstätten (CRD)/Skarn-Mineralisierungen erweitern sollen.
Das Unternehmen hat ein renommiertes technisches Team zusammengestellt, darunter John Reynolds (Durango Geophysical), Rich Leveille (ehemaliger SVP bei Freeport-McMoRan) und weitere Branchenexperten. Das South Mountain Projekt, etwa 70 Meilen südwestlich von Boise gelegen, weist eine historische Produktion von 53.642 Tonnen mit durchschnittlichen Gehalten von 14,5% Zn, 363,42 g/t Ag, 1,98 g/t Au, 1,4% Cu und 2,4% Pb auf.
MT- und IP-Untersuchungen werden bis zum Spätsommer fortgesetzt, mit Interpretation und 3D-Modellierung, die für das vierte Quartal 2025 geplant sind. Die Zieldefinition für Bohrungen läuft für ein mögliches Programm Ende 2025 oder Anfang 2026.
- Assembly of renowned technical team with proven discovery track records
- Historical high-grade production with 14.5% Zn, 363.42 g/t Ag, 1.98 g/t Au grades
- Project located on private land with streamlined permitting process
- Significant investment of US$25 million into project development
- Advanced exploration techniques being deployed to identify new mineralization
- Drill program delayed until late 2025 or early 2026
- Historical mining limited to only 53,642 tons of material
- Project requires additional exploration to confirm deep porphyry potential
Program includes deep-sensing Magnetotelluric (MT) survey and geophysical work led by a renowned exploration team
Key elements of Phase II exploration include:
- Magnetotelluric (MT) geophysics to investigate potential deep-seated porphyry centers.
- Extension and refinement of IP geophysical surveys across key zones of the project.
- Porphyry-focused mapping and sampling programs to validate and extend historical geochemical anomalies.
- Structural geological studies to refine drill targeting, improve geological models, and identify the structural controls of the mineralized system.
Boise, Idaho--(Newsfile Corp. - August 6, 2025) - Thunder Mountain Gold Inc. (OTCQB: THMG) (TSXV: THM) ("Thunder Mountain" or the "Company") is pleased to announce the commencement of Phase II field exploration at its South Mountain Project in Owyhee County, Idaho. This advanced exploration campaign marks a significant step in targeting deeper porphyry systems and expanding the footprint of the known Carbonate Replacement Deposits (CRD)/skarn mineralization.
Building on the success of earlier fieldwork, the Phase II program integrates deep-penetrating geophysical tools and the expertise of a multidisciplinary team. Central to this phase is a state-of-the-art Magnetotelluric (MT) survey, designed to image conductive anomalies at depth that may reflect porphyry copper-molybdenum systems beneath the known high-grade zones.
Figure 1. Location of South Mountain Project
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Exploration Technical Team:
The Phase II geophysical program is being directed by a well known multi-disciplinary technical team with decades of exploration success and multiple discoveries to their credit:
- John Reynolds - Durango Geophysical Operations: Leading the acquisition and interpretation of IP and MT datasets. John is credited with the geophysical discoveries of the Las Colinas/Los Planes gold deposit in Baja California Mexico and the Boa Esperança copper-cobalt deposit in the Tucuma region of Para, Brazil. John led early geophysical programs at South Mountain with Dr. Phil Hallof —considered the father of modern induced polarization and member of the Canadian Mining Hall of Fame.
- Rich Leveille - Consulting Exploration Geologist: Overseeing porphyry copper-molybdenum mapping and sampling. Rich's career includes discovery leadership roles at Penasquito (Kennecott), Sossego-Sequeirinho (Phelps Dodge), and most recently, as Senior VP Exploration at Freeport-McMoRan. His work has contributed to global copper reserves and earned him the PDAC Thayer Lindsley International Discovery Award.
- Dr. Stephen J. Reynolds - Arizona State University (Emeritus): Guiding structural geology and regional interpretation. Dr. Reynolds is recognized for redefining gold system models in southern Baja California and has led exploration initiatives for porphyry and precious metal systems across the western U.S. and Mexico.
- Dale Moore - Tamarack Geological Services: Providing 3D geological, geochemical, and geophysical modeling using Leapfrog. Dale was instrumental in the Galena GIP exploration program, which greatly added to the silver resource base of Americas Gold and Silver.
- Karen Christopherson - Chinook Geoconsulting: Interpreting MT geophysical data with advanced 2D/3D modeling techniques. Karen's work is key to locating deep porphyry centers beneath the current South Mountain mineralization.
"The launch of Phase II reflects our commitment to unlocking the full scale of the South Mountain system," commented Eric T. Jones, President & CEO of Thunder Mountain. "With John Reynolds and our extended technical team, we're executing the most comprehensive and technically advanced exploration campaigns in the Company's history. These efforts will significantly enhance our understanding of the deeper copper-molybdenum porphyry potential while advancing South Mountain as one of the more compelling high-grade CRD systems in North America."
Next Steps:
The MT and IP surveys will be conducted through late summer, while interpretation and 3D modeling will follow in Q4 2025. Drill target prioritization is underway for a potential late-year 2025 or early 2026 program. All activities are being completed in alignment with Thunder Mountain's permitting framework on private land, ensuring an efficient path toward project development.
Qualified Person(s) Statement for the Technical Data in this Release
The technical information in this news release was reviewed and approved by Tyson Forbush, C.P.G., consulting geologist with GeoTech LLC, and a "Qualified Person" as defined by the U.S. SK-1300 regulations & National Instrument 43-101 (Canada) standards.
The South Mountain Project
The South Mountain Mine is a polymetallic development project containing high-grade zinc, silver, gold, and copper, and is located on private land approximately 70 miles southwest of Boise, Idaho (See Figure 1 above). The Project is on private land, permitting has been, and should continue to be a clear-cut process. The Project was intermittently mined from the late from 1940s to the late 1960s, most notably by Anaconda Mining, with over 4,000 feet of underground developmental workings that that have been rehabilitated, re-engineered, and MSHA compliant. Thunder Mountain Gold Inc. purchased and advanced the project from 2007 through Present, with expenditures into the project of approximately US
Regarding Thunder Mountain Gold, Inc.
Thunder Mountain Gold Inc., a junior exploration company founded in 1935, owns interests in base and precious metals projects in the western U.S. The Company's principal asset is The South Mountain Mine, a historic former Anaconda Copper Company development of zinc, silver, gold, lead, and copper, located on private land in Owyhee County Idaho. Thunder Mountain Gold also owns
OTHER COMPANY NEWS:
The Company has reserved Wednesday, December 3, 2025, for its annual shareholder meeting. Further details will be distributed to shareholders in the upcoming Proxy Statement.
Forward-Looking Statements
This press release contains forward-looking statements that are based on the beliefs of management and reflect the Company's current expectations. Generally, forward-looking statements can be identified by the use of forward-looking terminology such as "plans", "expects", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates", "believes" or variations of such words and phrases or statements that certain actions, events or results "may", "could", "would", "might" or "will be taken", "occur" or "be achieved" or the negative connotation thereof. The forward-looking statements are based on certain assumptions which could change materially in the future. By their nature, forward-looking information involves known and unknown risks, uncertainties and other factors that may cause actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking information. Investors should refer to THMG's Form 10-K, Form 10-Q reports, for a more detailed discussion of risks that may impact future results. There can be no assurance that forward-looking information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, investors should not place undue reliance on forward-looking information. Forward-looking information is provided as of the date of this press release, and the Company assumes no obligation to update or revise them to reflect new events or circumstances, except as required in accordance with applicable laws.
Cautionary Note to Investors
This news release is intended for release in the United States only. Neither the TSX Venture Exchange, the OTCQB, nor either of its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
For further information, please contact:
Thunder Mountain Gold, Inc.
Eric T. Jones
President and Chief Executive Officer
Eric@thundermountaingold.com
Office: (208) 658-1037
To view the source version of this press release, please visit https://www.newsfilecorp.com/release/261413
FAQ
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