|
gptkbp:instance_of
|
gptkb:Company
|
|
gptkbp:acquisition
|
various mining companies
|
|
gptkbp:associated_with
|
gptkb:Keweenaw_Peninsula
|
|
gptkbp:closing_date
|
gptkb:1968
|
|
gptkbp:community_engagement
|
local community initiatives
|
|
gptkbp:community_impact
|
gptkb:local_economy
|
|
gptkbp:community_involvement
|
contributed to local infrastructure
|
|
gptkbp:community_partnerships
|
maintained community relations
|
|
gptkbp:community_support
|
supported local education
|
|
gptkbp:contribution
|
significant tax revenue
|
|
gptkbp:copper_exports
|
exported copper internationally
|
|
gptkbp:copper_market_influence
|
influenced copper prices
|
|
gptkbp:copper_mining_region
|
Keweenaw Copper District
|
|
gptkbp:copper_production_peak
|
early 20th century
|
|
gptkbp:cultural_impact
|
influence on local culture
|
|
gptkbp:discovery
|
open-pit mining
|
|
gptkbp:dissolved
|
gptkb:1968
|
|
gptkbp:employees
|
over 10,000
|
|
gptkbp:environmental_concerns
|
subject to regulations
|
|
gptkbp:environmental_impact
|
pollution issues
|
|
gptkbp:financials
|
bankruptcy in 1968
|
|
gptkbp:founded
|
1901
|
|
gptkbp:founder
|
gptkb:Alexander_Agassiz
|
|
gptkbp:headquarters
|
gptkb:Calumet,_Michigan
|
|
gptkbp:historical_impact
|
copper mining practices
|
|
gptkbp:historical_period
|
gptkb:20th_century
|
|
gptkbp:historical_records
|
extensive historical documentation
|
|
gptkbp:historical_significance
|
major copper producer
important in U. S. mining history
|
|
gptkbp:historical_site
|
gptkb:Calumet_Historic_District
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Calumet and Hecla Consolidated Copper Company
|
|
gptkbp:industry
|
mining
|
|
gptkbp:key_people
|
gptkb:John_D._Rockefeller
|
|
gptkbp:legacy
|
impact on mining industry
|
|
gptkbp:location
|
gptkb:Michigan
|
|
gptkbp:mining_expansion
|
expanded mining operations
|
|
gptkbp:mining_locations
|
advanced mining techniques
copper mines
legacy in mining practices
pioneered mining innovations
|
|
gptkbp:natural_resources
|
owned large mineral rights
|
|
gptkbp:notable_achievement
|
largest copper producer in the U. S.
|
|
gptkbp:notable_person
|
gptkb:William_A._Mc_Gowan
|
|
gptkbp:operational_status
|
defunct
|
|
gptkbp:parent_company
|
gptkb:Calumet_and_Hecla_Mining_Company
|
|
gptkbp:partnerships
|
various local businesses
|
|
gptkbp:preservation_efforts
|
preserved mining heritage
|
|
gptkbp:produces
|
large copper reserves
produced millions of pounds of copper
|
|
gptkbp:products
|
gptkb:copper
gptkb:silver
|
|
gptkbp:region
|
gptkb:United_States
|
|
gptkbp:research_and_development
|
invested in mining technology
|
|
gptkbp:revenue
|
millions of dollars
|
|
gptkbp:safety_record
|
improved mining safety standards
|
|
gptkbp:significant_event
|
merger with other companies
|
|
gptkbp:stock_exchange
|
gptkb:New_York_Stock_Exchange
|
|
gptkbp:subsidiary
|
gptkb:Calumet_and_Hecla_Mining_Company
|
|
gptkbp:successor
|
Kennecott Copper Corporation
|
|
gptkbp:type
|
gptkb:public_company
|
|
gptkbp:website
|
gptkb:N/_A
|
|
gptkbp:bfsParent
|
gptkb:Calumet_and_Hecla_Mining_Company
|
|
gptkbp:bfsLayer
|
7
|