Calumet and Hecla Mining Companies Geological Map Collection, Circa 1896-Circa 1966.

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Calumet and Hecla Mining Companies Geological Map Collection, Circa 1896-Circa 1966.

http://www.worldcat.org/oclc/758502624

Map collection, circa 1896-circa 1966, of the Calumet and Hecla Mining Company in Michigan's Keweenaw Peninsula. Includes geological maps of surface and underground mines and properties owned by the company as well as properties owned by other entities. Also includes some mechanical drawings of machinery and building plans for company-owned buildings.

88.0 cubic feet; 44 map drawers.

Michigan Technological University, J.R. Van Pelt & Opie Library; Michigan Tech

Information

SNAC Resource ID: 8145298

Michigan Technological University, J.R. Van Pelt & Opie Library; Michigan Tech

Related Entities

There are 2 Entities related to this resource.

Calumet and Hecla Consolidated Copper Company Geological Division

http://n2t.net/ark:/99166/w65n2zwx (corporateBody)

Calumet and Hecla Mining Company

http://n2t.net/ark:/99166/w6x10xtg (corporateBody)

The Calumet and Hecla Consolidated Copper Company was the most successful corporation to have mined native copper in Michigan's Upper Peninsula. Through nearly a century of mining activity, the company produced in excess of 4.5 billion pounds of refined copper and issued over $200 million in shareholder dividends. Unlike many of its competitors along the Keweenaw Peninsula, Calumet and Hecla successfully expanded its operations over several separate mineral bodies, developed capital-intensive an...