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1. Geologic map of the Lake Superior region, Minnesota, Wisconsin and northern Michigan, bedrock geology, S-13

1982. Morey, G.B., Sims, Paul K., Cannon, William F., and Mudrey, Mike G., Jr., Southwick, David L. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Minnesota and the Lake Superior regi...