Underground mining practice and costs at a Mesabi Range (Minnesota) mine using the top slicing system

Author: Haselton, W. D.
Year: 1930
Document Type: USBI
Issuing Agency: U.S. Dept. of Commerce, Bureau of Mines,
Series: Information circular / United States Department of Commerce, Bureau of Mines ;
Report Number: 6325
Subject: Mining engineering--Minnesota
Link: https://hdl.handle.net/2027/mdp.39015074128342

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