1979. Ojakangas, Richard W. and Southwick, David L. Map showing interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the International Falls ... Minnesota Geological Survey.
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1970. Austin, George S., Grant, James A. (Geologist), Ikola, Rodney J., and Sims, Paul K. Map showing interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the New Ulm quadrangle, ... Minnesota Geological Survey.
1982. Goebel, Joseph E. and Hobbs, Howard C. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an... Minnesota Geological Survey.
1979. Goebel, Joseph E. and Walton, Matt. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an... Minnesota Geological Survey.
1979. Morey, G.B., Mossler, John H., and Ojakangas, Richard W. Map showing interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Roseau quadrangle, s... Minnesota Geological Survey.
1966. Austin, George S. and Sloan, Robert E. (Robert Evan), 1929-. Map showing interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the St. Paul quadrangle,... Minnesota Geological Survey.
1982. Green, John C., 1932-. Map showing interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Two Harbors quadrang... Minnesota Geological Survey.
1985. Bauer, Robert L. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Norwegian Bay quadrangle, scale ... Minnesota Geological Survey.
1977. Mudrey, M.G., Jr. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Pigeon Point quadrangle, scale 1... Minnesota Geological Survey.
2002. Southwick, David L. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments), pre-Cretaceous rocks, southwestern Min... Minnesota Geological Survey.