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Search U.S. government technical reports digitized or harvested by TRAIL.
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4 results returnedPumping operations in the Cripple Creek district, Colo.
Operations and costs at the St. Joe Mining & Milling Co., Boulder, Colo.
Mining and milling methods and costs at the Black Hills Tin Co., Tinton, S. Dak.
Published Year
Subject
- Gold mines and mining--Colorado--Boulder County (1)
- Gold mines and mining--Colorado--Cripple Creek Region (1)
- Mine pumps (1)
- Mines and mineral resources--South Dakota (1)
- Smelting (1)
- Tin mines and mining--South Dakota (1)
Author
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