Online link | https://doi.org/10.3133/ofr20181042 |
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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 |