Winona MinePast Producer • Copper
|
Wyandot MinePast Producer • Copper
|
King Philip MinePast Producer • Copper
|
Shawmut MinePast Producer • Copper
|
Elm River MinePast Producer • Copper
|
Calumet and Hecla Conglomerate LodePast Producer • Copper
|
Kearsarge AmygdaloidPast Producer • Copper
|
Pewabic AmygdaloidPast Producer • Copper
|
Osceola AmygdaloidPast Producer • Copper
|
Isle Royale AmygdaloidPast Producer • Copper
|
Arcadian MinePast Producer • Copper
|
St. Louis ExplorationProspect • Copper
|
Atlantic Section 16 ExplorationProspect • Copper
|
Globe MinePast Producer • Copper
|
Houghton ExplorationProspect • Copper
|
Naumkeag MinePast Producer • Copper
|
New Arcadian ExplorationProspect • Copper
|
New Baltic ExplorationProspect • Copper
|
Old Colony ExplorationProspect • Copper
|
Oneco ExplorationProspect • Copper
|
Rhode Island ExplorationProspect • Copper
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Saint Mar* MineProspect • Copper
|
Atlantic MinePast Producer • Copper
|
Centennial MinePast Producer • Copper
|
Champion MinePast Producer • Copper
|
Franklin Junior MinePast Producer • Copper
|
Hancock MinePast Producer • Copper
|
Iroquois MinePast Producer • Copper
|
Isle Royale MinePast Producer • Copper
|
Kearsarge MinePast Producer • Copper
|
La Salle MinePast Producer • Copper
|
Mayflower Old Colony MinePast Producer • Copper
|
North Kearsarge MinePast Producer • Copper
|
Osceola MinePast Producer • Copper
|
South Kearsarge MinePast Producer • Copper
|
Superior MinePast Producer • Copper
|
Tamarack Junior MinePast Producer • Copper
|
Tamarack MinePast Producer • Copper
|
Trimountain MinePast Producer • Copper
|
Ripley ExplorationProspect • Copper
|
Baltic AmygdaloidPast Producer • Copper
|
Baltic MinePast Producer • Copper
|
Laurium MinePast Producer • Copper
|
Quincy MinePast Producer • Copper, Silver
|
Wolverine MinePast Producer • Copper
|
Atlantic AmygdaloidPast Producer • Copper
|
Houghton Co Road Commission PitProducer • Sand and Gravel, Construction
|
Unnamed Copper MinePast Producer • Copper
|
Unnamed Copper MinePast Producer • Copper
|
King Philip Cu MinePast Producer • Copper
|
Unnamed Copper MinePast Producer • Copper
|
Kingston No.1Past Producer • Copper
|
Baltic AmygdaloidPast Producer • Copper
|
Unnamed Copper MinePast Producer • Copper
|
North KearsargePast Producer •
|
Unnamed Copper ProspectProspect • Copper
|
Houghton Co Road Commission PitProducer • Stone, Crushed/Broken
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Mayflower-Old ColonyProspect •
|
SuperiorPast Producer •
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Houghton No.1Past Producer • Copper
|
Unnamed Copper ProspectProspect • Copper
|
South KearsargePast Producer •
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Trimountain Cu Mine SouthPast Producer • Copper
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Arcadian Cu Mine NorthPast Producer •
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Kearsarge Amygdaloid No.1Past Producer • Copper
|
Pewabic No.2Past Producer • Copper
|
Unnamed Copper ProspectProspect • Copper
|
Calumet No.1Past Producer • Copper
|
Globe Copper MinePast Producer • Copper
|
Hager Lake PitProducer • Sand and Gravel, Construction
|
Houghton Co Road Commission PitProducer • Stone, Crushed/Broken
|
Concord & Douglas Copper MinePast Producer • Copper
|
La Salle Cu MinePast Producer • Copper
|
Unnamed Copper ProspectProspect • Copper
|
Unnamed Copper ProspectProspect • Copper
|
Haltunen Sand & GravelProducer • Sand and Gravel, Construction
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FranklinPast Producer • Copper
|
Baltic PitProducer • Stone, Crushed/Broken
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Arcadian Copper MinePast Producer • Copper
|
ChampionPast Producer • Copper
|
Osceola No.1Past Producer • Copper
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Trimountain Cu Mine NorthPast Producer • Copper
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WinonaPast Producer • Copper
|
Centennial No. 3-6Past Producer • Copper
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Unnamed Copper ProspectProspect • Copper
|
Unnamed Copper ProspectProspect • Copper
|
Hancock Copper MinesPast Producer • Copper
|
QuincyPast Producer •
|
Unnamed Copper ProspectProspect • Copper
|
Unnamed Copper ProspectProspect • Copper
|
Pewabic No.1Past Producer • Copper
|
Mich Tech University ExperPast Producer • Stone, Crushed/Broken
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Challenge Copper MinePast Producer • Copper
|
Houghton Crushed Stone PitProducer • Stone, Crushed/Broken
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George Hocking Constr Co PitPast Producer • Stone, Crushed/Broken
|
Unnamed Copper ProspectProspect • Copper
|
Unnamed Copper ProspectProspect • Copper
|
Tamarack Mine DumpPast Producer • Stone, Crushed/Broken
|
Quincy Cu MinePast Producer • Copper
|
BalticPast Producer • Copper
|
Franklin Junior Copper MinesPast Producer • Copper
|
Winona Copper MinePast Producer • Copper
|
Centennial No.2Past Producer •
|
Miscellaneous Amygdaloids No. 1Past Producer • Copper
|
TrimountainPast Producer • Copper
|
Unnamed Copper ProspectProspect • Copper
|
Houghton Co Road Commission QuarryProducer • Stone, Crushed/Broken
|
Miscellaneous Fissures No. 2Past Producer • Copper
|
Calumet No 2Past Producer • Copper
|
George Hocking Constr Co PitProducer • Sand and Gravel, Construction
|
Wash PlantProducer • Sand and Gravel, Construction
|
Unnamed Copper ProspectProspect • Copper
|
Isle RoyalePast Producer • Copper, Silver
|
AtlanticPast Producer •
|
Allouez Conglomerate No 1 & 2Past Producer • Copper
|
Rhode Island Cu MinePast Producer • Copper
|
OsceolaPast Producer • Copper
|
Osceola No. 2Past Producer • Copper
|
New Baltic Copper CompanyPast Producer • Copper
|
Dodgeville Pit and MillPast Producer • Stone, Crushed/Broken
|
Superior Cu MinePast Producer • Copper
|
Mesnard Cu MinePast Producer • Copper
|
Miscellaneous Fissures No. 1Past Producer • Copper
|
Mica Schist Drill SampleProspect • Stone, Crushed/Broken
|
Wyandotte Cu MinePast Producer • Copper
|
Kingston No.2Past Producer • Copper
|
Unnamed Copper ProspectProspect • Copper
|
Kearsarge Amygdaloid No.2Past Producer • Copper
|
Gedvillas PitProducer • Sand and Gravel, Construction
|
G and S Sand and Gravel PitProducer • Sand and Gravel, Construction
|
Sturgeon Clay PitPast Producer • Fire Clay (Refractory)
|
WolverinePast Producer •
|
Arcadian Copper Mine SouthPast Producer • Copper
|
Winona PitPast Producer • Stone, Crushed/Broken
|
Trimountain Cu MinePast Producer • Copper
|
Unnamed Copper MinePast Producer • Copper
|
Unnamed Copper ProspectProspect • Copper
|
Superior Sand and Gravel PitProducer • Sand and Gravel, Construction
|
Miscellaneous Amygdaloids No. 2Past Producer • Copper
|
Nort* Copper PitProspect • Copper
|
Moilanen PitProducer • Sand and Gravel, Construction
|
Wheal Kate ProspectProspect • Copper
|
Douglass Houghton ExplorationProspect • Copper
|
Montezuma ProspectProspect • Copper
|
Webster ProspectProspect • Copper
|
Pacific ExplorationProspect • Copper
|
Mesnard MinePast Producer • Copper
|
Mabbs MinePast Producer • Copper
|
Eagle ExplorationProspect • Copper
|
South Side MinePast Producer • Copper
|
Pontiac ExplorationProspect • Copper
|
Huron MinePast Producer • Copper
|
Erie-Ontario MineProspect • Copper
|