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Blue-Ledge copper-zinc mine, Siskiyou County, Calif.

Investigation of the Minah lead-silver mine, Jefferson County, Mont.

Published Year

• 1940-1949 (2) *

Subject

• Copper mines and mining--California--Siskiyou County (1)
• Lead mines and mining--Montana--Jefferson County (1)
• Silver mines and mining--Montana--Jefferson County (1)
• Zinc mines and mining--California--Siskiyou County (1)

Author

• Hundhausen, R. J. (2) *
• Lorain, S. H. (1)

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