Calumet and Hecla Mining Company

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:mining_industry
gptkbp:ceased_operations	1968
gptkbp:country	gptkb:United_States
gptkbp:employs	thousands of workers
gptkbp:founded	1866
gptkbp:founder	gptkb:Alexander_Agassiz gptkb:Edwin_J._Hulbert
gptkbp:headquarters_location	gptkb:Calumet,_Michigan
gptkbp:historicalSignificance	largest copper producer in the United States in the late 19th and early 20th centuries
gptkbp:industry	copper mining
gptkbp:legacy	gptkb:Calumet_&_Hecla_Industrial_District_(historic_site) gptkb:Calumet_and_Hecla_Hospital gptkb:Calumet_and_Hecla_Public_Library
gptkbp:mergedInto	gptkb:Quincy_Mining_Company
gptkbp:notable_executive	gptkb:Alexander_Agassiz gptkb:James_MacNaughton
gptkbp:notableEvent	site of the 1913 Italian Hall disaster
gptkbp:notableFor	gptkb:Calumet_Mine gptkb:Hecla_Mine
gptkbp:notableProduct	copper
gptkbp:operates	stamp mills mines in Michigan's Keweenaw Peninsula smelters
gptkbp:parent_company_(post-1968)	gptkb:Universal_Oil_Products
gptkbp:stockExchange	gptkb:New_York_Stock_Exchange
gptkbp:bfsParent	gptkb:Alexander_Agassiz gptkb:Anaconda_Copper_Mining_Company
gptkbp:bfsLayer	5
https://www.w3.org/2000/01/rdf-schema#label	Calumet and Hecla Mining Company