|
gptkbp:instance_of
|
gptkb:sports_equipment
|
|
gptkbp:acquired
|
various smaller mining operations
|
|
gptkbp:associated_with
|
gptkb:Copper_Country
|
|
gptkbp:challenges
|
Market fluctuations
|
|
gptkbp:community_impact
|
Economic development in Michigan
|
|
gptkbp:contributed_to
|
local infrastructure
U. S. copper supply
|
|
gptkbp:developed_by
|
housing for workers
|
|
gptkbp:dissolved
|
gptkb:1968
|
|
gptkbp:employs
|
thousands of workers
|
|
gptkbp:environmental_impact
|
Mining pollution
|
|
gptkbp:established
|
mining schools
|
|
gptkbp:founded
|
1864
|
|
gptkbp:founder
|
gptkb:Alexander_Agassiz
|
|
gptkbp:had
|
a significant impact on local economy
a significant workforce
|
|
gptkbp:headquarters
|
gptkb:Calumet,_Michigan
|
|
gptkbp:historical_significance
|
Major player in the copper industry
|
|
gptkbp:historical_site
|
gptkb:Calumet_Historic_District
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Calumet and Hecla Mining Company
|
|
gptkbp:industry
|
Copper mining
|
|
gptkbp:influenced
|
Labor relations in mining
|
|
gptkbp:involved_in
|
gptkb:Philanthropy
community initiatives
|
|
gptkbp:is_affected_by
|
gptkb:Great_Depression
|
|
gptkbp:is_recognized_by
|
community contributions
|
|
gptkbp:known_for
|
high-grade copper ore
|
|
gptkbp:leadership
|
mining innovation
|
|
gptkbp:legacy
|
Influence on mining practices
|
|
gptkbp:merged_with
|
other mining companies
|
|
gptkbp:notable_products
|
gptkb:Copper
|
|
gptkbp:operates_in
|
gptkb:Keweenaw_Peninsula
|
|
gptkbp:operational_period
|
19th century to mid-20th century
|
|
gptkbp:owned_by
|
numerous mines
|
|
gptkbp:produced
|
over 1 billion pounds of copper
copper ingots
silver as a byproduct
|
|
gptkbp:significant_event
|
Labor strikes
|
|
gptkbp:sponsored_by
|
cultural events
|
|
gptkbp:stock_exchange
|
Listed on the New York Stock Exchange
|
|
gptkbp:successor
|
gptkb:Calumet_and_Hecla_Consolidated_Copper_Company
|
|
gptkbp:trade_goods
|
copper to the U. S. military
|
|
gptkbp:utilized
|
advanced mining technology
|
|
gptkbp:was_a_pioneer_in
|
sustainable mining practices
|
|
gptkbp:was_involved_in
|
World War II production
environmental restoration efforts.
|
|
gptkbp:was_known_for
|
safety practices
its mining techniques
|
|
gptkbp:was_part_of
|
U. S. industrial history
|
|
gptkbp:bfsParent
|
gptkb:Calumet,_Michigan
|
|
gptkbp:bfsLayer
|
6
|