Block caving at Kelley Mine, the Anaconda Co., Butte, Mont.

Author: Popoff, C. C.
Year: 1956
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:7758
Series: Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number: 7758
Subjects: Caving mining
Copper mines and mining--Montana
Link: https://hdl.handle.net/2027/mdp.39015078462853

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