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||Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, Manners and Customs, Miners, Copper Miners||
Calumet & Hecla and Subsidiaries Safety Firse information board. [Image shows a sign that provides information on Calumet and Hecla's safety regulations.]
Scanned: June 13, 2013
||Manners and Customs, Education, Postsecondary Education, Education, Higher, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining||
Mining Class 81,00 feet down Quincy Shaft.
Scanned: January 21, 2014