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Kimberly method of block-caving using slusher drifts
Block caving at Kelley Mine, the Anaconda Co., Butte, Mont.
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Published Year
1940-1949 (1)
1950-1959 (1)
Subject
Caving mining (2) *
Copper mines and mining--Montana (1)
Mining engineering--Costs (1)
Author
Popoff, C. C. (1)
Richards, John A. (1)
