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Drilling and blasting, open-cut iron-ore mines, Lake Superior District
Roof bolting and dust control
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Published Year
1950-1959 (2) *
Subject
Coal mines and mining--Dust control (1)
Iron mines and mining--Michigan (1)
Iron mines and mining--Minnesota (1)
Iron mines and mining--Wisconsin (1)
Mine roof bolting (1)
Strip mining (1)
Author
Anderson, Floyd G. (2) *
Harmon, John P. (1)
Johnson, John A. (1)
Johnson, Leslie. (1)
Owings, C. W. (1)
Stott, Roy G. (1)
Westfield, James. (1)
