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Copper mining in Michigan
URI:
https://gptkb.org/entity/Copper_mining_in_Michigan
GPTKB entity
Statements (69)
Predicate
Object
gptkbp:instanceOf
mining industry
gptkbp:archaeologicalSignificance
ancient mining tools
prehistoric mining pits
gptkbp:beganIn
prehistory
gptkbp:country
gptkb:United_States
gptkbp:declinedAfter
mid-20th century
gptkbp:hasHistoricSite
gptkb:Portage_Lake_Lift_Bridge
gptkb:Copper_Harbor
gptkb:Delaware_Mine
gptkb:Eagle_Harbor_Lighthouse
gptkb:Keweenaw_National_Historical_Park
gptkb:Lake_Superior
gptkb:Keweenaw_Waterway
gptkb:Adventure_Mine
gptkb:Central_Mine
gptkb:Champion_Mine
gptkb:Cliff_Mine
gptkb:Laurium_Manor_Inn
gptkb:Quincy_Smelter
gptkb:Redridge_Steel_Dam
gptkb:Tamarack_Mine
gptkb:Isle_Royale
gptkb:Baltic_Mine
gptkb:Ahmeek_Mine
gptkb:Fort_Wilkins
gptkb:Calumet_Historic_District
gptkb:Quincy_Mine_Hoist
Houghton County Courthouse
Atlantic Mine
Calumet and Hecla Industrial District
Hubbell Smelter
Lake Linden Smelter
White Pine Mine
Winona Mine
https://www.w3.org/2000/01/rdf-schema#label
Copper mining in Michigan
gptkbp:location
gptkb:Michigan
gptkbp:mineralExtracted
native copper
copper oxides
copper sulfides
gptkbp:notableCompany
gptkb:Calumet_and_Hecla_Mining_Company
gptkb:Copper_Range_Company
gptkb:Adventure_Mining_Company
gptkb:Atlantic_Mining_Company
gptkb:Baltic_Mining_Company
gptkb:Tamarack_Mining_Company
gptkb:Quincy_Mining_Company
Ahmeek Mining Company
Champion Mining Company
Winona Mining Company
gptkbp:notableFor
gptkb:Adventure_Mine
gptkb:Central_Mine
gptkb:Champion_Mine
gptkb:Cliff_Mine
gptkb:Quincy_Mine
gptkb:Tamarack_Mine
gptkb:Baltic_Mine
gptkb:Ahmeek_Mine
19th century
early 20th century
Atlantic Mine
Calumet and Hecla Mine
White Pine Mine
Winona Mine
gptkbp:peak_production
late 19th century
gptkbp:region
gptkb:Copper_Country
gptkb:Keweenaw_Peninsula
gptkbp:significant_closure
1968
gptkbp:bfsParent
gptkb:Copper_Country_Strike_of_1913
gptkbp:bfsLayer
7