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geological map

lionel pincus and princess firyal map division

maps

maps of north america

michigan

lake superior

foster j w john wells 1815 1873 creator

copper mines and mining, geological map

public
3 media by topic ∙ page 1 of 1
Geological map of Isle Royale, Lake Superior, Michigan

Geological map of Isle Royale, Lake Superior, Michigan

Public domain scan of a plan, map, diagram, free to use, no copyright restrictions - Picryl description.

Geological map of the district between Portage Lake and Montreal River, Lake Superior, Michigan

Geological map of the district between Portage Lake and Montreal River...

Public domain image of a vintage map, geography atlas, maritime navigation, age of discovery, 16th-17th century, free to use, no copyright restrictions - Picryl description

Geological map of Keweenaw Point, Lake Superior, Michigan

Geological map of Keweenaw Point, Lake Superior, Michigan

Public domain image of a vintage map, geography atlas, maritime navigation, age of discovery, 16th-17th century, free to use, no copyright restrictions - Picryl description