Recent core samples from the Yellow Pine and Hangar Flats deposits show significant mineralization, including an intercept of 21.3 meters grading 3.2 g/t gold and 0.9% tungsten at the Clark Tunnel Fault Zone. At Hangar Flats, specialized drilling for critical minerals returned results as high as 8.3% antimony and 4.6% tungsten. These findings build on the district’s history; the Stibnite region served as a primary source of U.S. tungsten during the Second World War and the Korean War.
In section Releases
Perpetua Resources Targets Tungsten Expansion at Stibnite Mine
Exploration drilling at Perpetua Resources’ Stibnite project in Idaho has unearthed high-grade gold, antimony, and tungsten deposits, prompting the company to seek federal funding for a expanded critical minerals program. The findings, derived from the first exploratory drilling in nearly a decade, signal a strategic pivot toward domestic tungsten production.
Perpetua CEO Jon Cherry stated that the company is focusing on high-grade targets to potentially extend the life of the permitted Stibnite Gold Project beyond its initial four-year plan. With four drill rigs currently active, the company has completed 5,800 meters of a planned 10,000-meter program. While the current mining permit is centered on gold and antimony, the discovery of tungsten has led management to submit a proposal for U.S. government grant funding to accelerate metallurgical analysis and resource evaluation. Any development of these new targets remains subject to separate environmental reviews and regulatory approval.
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