Drawer 30-44
Container
Contains 1 Result:
Calumet and Hecla Mining Companies Geological Map Collection
Collection — Multiple Containers
Identifier: MS-045
Abstract
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.
Dates:
Circa 1896-Circa 1966 Circa 1896-Circa 1966