Nevada tungsten comeback story just got its first modern map -- and the drill targets are taking shape

Nevada’s tungsten revival is gaining momentum as exploration companies begin to apply modern geological techniques to historic mining districts. The latest development comes from Spartan Metals Corp, which has completed surface mapping, soil sampling, and geophysical surveys at its Eagle project in western Nevada. These efforts are part of a broader strategy to validate and expand upon nearly century-old data from World War II-era mining operations, with the goal of identifying drill targets for the Tungstonia tungsten deposit.

The company’s exploration work has revealed that tungsten-bearing veins previously mined over 700 meters in length extend to nearly 2 kilometers along strike. This continuity suggests significant potential for deeper mineralization, which was not tested by historic operators who worked only to a depth of approximately 75 meters. The findings are being integrated into 3D geological models to guide the company’s maiden drilling program, scheduled for early spring 2026.

In addition to primary exploration, Spartan is also focusing on a near-term monetization opportunity at Tungstonia. Approximately 10,000 tons of historic tailings grading 0.15% tungsten trioxide remain on site. Drilling of these tailings is set to begin on October 20, 2025, with the dual objectives of determining metallurgical recovery potential and assessing whether tungsten has leached into underlying soils.

Meanwhile, Vault Strategic Mining has also deployed a field team to the War Bond Tungsten Project in the Delaware Mining District of western Nevada. The company is applying modern exploration methods to verify historical information and advance the project toward drill-ready targets. Historical records from the 1940s include assays as high as 14.40% tungsten trioxide, though the company cautions that these data predate modern reporting standards and require confirmation.

Further south, Guardian Metal Resources is advancing its Pilot Mountain Project, which hosts a pit-constrained mineral resource estimate (MRE) of 8,694,000 tonnes at 0.206% WO₃ in the indicated category and 1,784,000 tonnes at 0.169% WO₃ in the inferred category. The company has completed eight additional drillholes since October 2025 and plans further drilling to test extensions of the Desert Scheelite deposit. The project is positioned to support the development of a domestically mined source of tungsten in the U.S., a critical mineral with no primary domestic production in over a decade.

These developments reflect a broader trend of renewed interest in U.S. tungsten production, driven by national security concerns and government initiatives aimed at reducing reliance on foreign supply chains. As companies like Spartan, Vault, and Guardian advance their projects, the path to a domestic tungsten industry is becoming clearer, with drill targets and resource models taking shape in Nevada’s historic mining districts.