Subject: Copper mines and mining / Spatial Coverage: Keweenaw County - Yale University Library GeoBlacklight Search Results

Start Over Subject Copper mines and mining Spatial Coverage Keweenaw County

1. Copper lands of St. Mary's Canal Mineral Land Co. shaded red

1859. 2018-12-18T22:11:12Z. 2023-10-25T16:42:45Z. publisher not identified. English. cartographic image. Public. Michigan, Keweenaw County, and Keweenaw County (Mich.).

2. Land of the Seneca Mining Co., Lake Superior, Michigan

1870. 2018-12-19T21:27:51Z. 2019-03-15T17:33:49Z. Endicott & Co. (New York, N.Y.), cartographer. Endicott & Co., lith, 59 Beekman St. English. cartographic image. Public. Michigan and Keweenaw County.

3. Map of a portion of Point Keweenaw, L.S. : showing the lands &c. of the Pennsylvania & Delaware Mining Co's.

1859. 2018-12-19T19:36:00Z. 2023-10-25T16:45:39Z. publisher not identified,N. Friend Lith. English. cartographic image. Public. Michigan, Keweenaw County, Keweenaw County (Mich.), and Keweenaw County.