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Search U.S. government technical reports digitized or harvested by TRAIL.
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3 results returnedLead-Zinc Deposits of the Dunkleberg District, Granite County, Montana
Block caving at Kelley Mine, the Anaconda Co., Butte, Mont.
An evaluation of the western phosphate industry and its resources - (in five parts).
Published Year
Subject
- Caving mining (1)
- Copper mines and mining--Montana (1)
- Lead mines and mining -- Montana. (1)
- Ore deposits -- Montana -- Granite County. (1)
- Phosphate industry--U.S (1)
- Zinc mines and mining -- Montana. (1)
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