Recovery and digitization of geophysical and sample points and data from 1:100,000 paper maps of the COGEOMAP(cooperative mapping program with U.S. Geological Survey) area, text only
Miller, James D., Jr.; Wahl, T.E.; Bauer, E.J..
Digitization of geologic data from 1985-1993 COGEOMAP program area, Minnesota.
Minnesota Geological Survey.
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