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CALUMET TOWNSHIP A warehouse constructed by the Calumet and Hecla Mining Company in the late 19th century will again become a warehouse of sorts, not for mi

United statesWyndeth davisHistoric preservation officeIsle royale national parkCh mining companyOffice buildingDenver service centerRich libraryHecla mining companyRocks national lakeshoreNational keweenaw historical parkNational park serviceNational park service denver centerNational parkPictured rocks national lakeshoreState historic preservation office