A Geological Map of the Mineral Region from the official plats of the United States surveys and chart of Lake Superior

Object Type: Folder
In Folder: Archives of Michigan Map Collection

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A Geological Map of the Mineral Region from the official plats of the United States surveys and chart of Lake Superior, Page 2

Map has been divided in two for conservation purposes. Shows all the surface rock types along the shore of Lake Superior as known in 1847. Scale on original is 1 inch equal 12 miles.

A Geological Map of the Mineral Region from the official plats of the United States surveys and chart of Lake Superior, Page 1

Map has been divided in two for conservation purposes. Shows all the surface rock types along the shore of Lake Superior as known in 1847. Scale on original is 1 inch equal 12 miles.

Archives of Michigan https://michigan.gov/archivesofmi