Barber-Delach, Robert

About the author

U.S. Geological Survey, Eastern Region, Midwest area, Geology discipline
Bedrock geologic units, Geologic maps, Geologic structure, Geology, Geospatial datasets, Mineral resources, GeoscientificInformation

Deposits of the Lake Superior region

This digital map portrays the bedrock geology of the states of Michigan, Wisconsin, and Minnesota taken from the most recent published regional compilations. Some minor modifications and generalizations have been made from the published maps. Informatio