Houghton, MI Copper Mines

Copper Mines in Houghton, Michigan

Mine Owner Land Status Work Type Minerals
Douglass Houghton Exploration Copper
Houghton Exploration Copper
Huron Mine Huron Mining Co. Copper
Isle Royale Universal Oil Products Private Copper
Isle Royale Amygdaloid Isle Royale Copper Company (Consolidation of Old Isle Royale Company, Huron Company, Grand Portage C Copper
Isle Royale Mine Copper
Mabbs Mine Isle Royale Mining Co. Copper
Mesnard Cu Mine Private Copper
Montezuma Prospect Montezuma Mining Co. Copper
Pewabic Amygdaloid Quincy Mining Co. Copper
Pewabic No.1 Calumet Real Estate Co. Private Underground Copper
Pewabic No.2 Calumet Real Estate Co. Private Underground Copper
Ripley Exploration Franklin Mining Co. (1863) Copper
Superior Mine Copper
Unnamed Copper Prospect Private Copper
Unnamed Copper Prospect Private Copper
Webster Prospect Webster Mining Co. Copper
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