Digital geologic map and mineral deposits of the Lake Superior region- Minnesota, Wisconsin, Michigan

Online link http://pubs.usgs.gov/of/of97-455/
Description Bedrock geologic units, faults, and MRDS mineral deposit records for the area
Originators Cannon, William F.; Kress, Thomas H.; Sutphin, David M.; Morey, G.B.; Meints, Joyce; and Barber-Delach, Robert D.
Publication U.S. Geological Survey Open-File Report 97-455

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