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Method and cost of driving the Rock Creek Tunnel, Hecla Mining Co., Shoshone County, Idaho

Published Year

• 1940-1949 (1) *

Subject

• Silver mines and mining--Idaho--Shoshone County (1)
• Tunneling--Idaho--Shoshone County--Costs (1)
• Tunneling--Idaho--Shoshone County--Technique (1) *

Author

• Butner, D. W. (1) *

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