Blackrock’s flagship Tonopah West project consolidates the western half of the famed Tonopah Silver District within the Walker Lane trend of Nevada. Known as the Queen of the Silver Camps, the Tonopah Silver District produced over 174 million ounces of silver and 1.8 million ounces of gold from approximately 7.5 million tonnes of material, making it one of the highest-grade silver primary districts in North America. As the first group to target unmined extensions starting from the historic workings on the property since production shut down nearly 100 years ago, Blackrock has brought new life to the district, completing in excess of 150,000 metres of exploration drilling since 2020. A 2026 Updated Preliminary Economic Assessment (PEA)* outlines an average annual production profile of 7.1 million silver equivalent ounces per year at an all-in sustaining cost of USD$17.44 per AgEq ounce over an 11.2 year mine life. The project currently hosts an indicated mineral resource estimate of 2.75 million tonnes at a block diluted grade of 216.8 grams per tonne (g/t) silver (Ag) and 2.25 g/t gold (Au) for a total of 19,167,000 ounces of silver and 199,000 ounces of gold. In addition, the project currently hosts an inferred mineral resource of 5.5 million tonnes at a block diluted grade of 188.5 g/t Ag and 2.62 g/t Au for a total of 33,560,000 ounces of silver and 467,000 ounces of gold.
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Jurisdiction
According to the Fraser Institute, in 2025 Nevada ranked as the top mining jurisdiction in the world based on investment attractiveness.
Silver Primary
According to the Silver Institute, only 29% of all silver produced comes from primary silver mines. The Tonopah silver district historically produced at a 100 to 1 silver/gold ratio, making Tonopah a silver primary precious metals district.
High Grade
Historic production in the Tonopah silver district averaged at 1,384 g/t silver and 16 g/t gold making it as one of the highest-grade silver districts in North America. Since acquiring control of the project in 2020, Blackrock has re-established Tonopah West as one of the highest-grade undeveloped silver projects in the industry with an indicated mineral resource estimate of 2.75M tonnes at a block diluted grade of 454.3 g/t AgEq for 40.1M ounces AgEq and an inferred mineral resource estimate of 5.5M tonnes at block diluted grade of 465.8 g/t AgEq for 82.9M ounces AgEq*
Jurisdiction
According to the Fraser Institute, in 2022 Nevada ranked as the top mining jurisdiction in the world based on investment attractiveness.
Silver Primary
According to the Silver Institute, only 29% of all silver produced comes from primary silver mines. The Tonopah silver district historically produced at a 100 to 1 silver/gold ratio, making Tonopah a silver primary precious metals district.
Bonanza Grades
Historic production in the Tonopah silver district averaged at 1,384 g/t silver and 16 g/t gold making it as one of the highest-grade silver districts in the world. Since acquiring control of the project in 2020, Blackrock has re-established Tonopah West as one of the highest-grade undeveloped silver projects in the industry following delivery of the maiden mineral resource estimate in 2022.
