7-20 A Kearsarge Amygloid lode working mine map, 1917-1955
File — drawer: 29 B11 A
Collection Scope and Content Summary
From the Collection:
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
- 1917-1955
Language of Material
From the Collection:
English
Conditions Governing Access
Available for use in the Michigan Technological University Archives and Copper Country Historical Collections.
Extent
From the Collection: 36 Cubic Feet (44 map drawers)
Repository Details
Part of the Michigan Technological University Archives and Copper Country Historical Collections Repository