Mining methods at the Campbell Mine of the Calumet & Arizona Mining Co., Warren, Ariz. :including cut-and-fill and semishrinkage

Author: Lavender, H. M.
Year: 1930
Document Type: MAIN
SUDOC: C 22.11:6289
Series: Information circular / United States Department of Commerce, Bureau of Mines ;
Report Number: 6289
Subject: Copper mines and mining--Arizona--Warren District
Link: https://hdl.handle.net/2027/mdp.39015095078930

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