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4 results returnedMining methods and costs at the Holden Mine, Chelan Division, Howe Sound Co., Chelan County, Wash.
Mining Methods and Costs at the Anaconda Company Berkeley Pit, Butte, Montana
Methods and costs of shaft sinking in the Coeur d'Alene District, Shoshone County, Idaho
Published Year
Subject
- Copper mines and mining -- Montana -- Butte. (1)
- Copper mines and mining--Washington (State)--Chelan County (1)
- Mine ventilation (1)
- Mineral industries--Idaho--Shoshone County (1)
- Rocks--Testing (1)
- Shaft sinking (1)
- Strip mining -- Montana. (1)
- Ultrasonic testing (1)
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