Digital representation of exposures of Precambrian bedrock in parts of Dickinson and Iron Counties, Michigan, and Florence and Marinette Counties, Wisconsin

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Description The U.S. Geological Survey (USGS) conducted a program of bedrock geologic mapping in much of the central and western Upper Peninsula of Michigan from the 1940s until the late 1990s. Geologic studies in this region are hampered by a scarcity of bedrock exp
Originators Cannon, William F., Schulte, Ruth F., Bickerstaff, Damon P.
Publication U.S. Geological Survey Open-File Report 2018-1042