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.
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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.
1910. A. Hoen & Co., Bayley, William Shirley, 1861-1943, and U.S. Lake Survey. Cartographic Details: Scale 1:22500. "By W.S. Bayley, 1890." Relief shown by contours. Includes 2 cross section insets and legend of rock types. "M... U.S. Geological Survey (Washington, D.C.), 1910.
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.
1993. Boerboom, Terrence J., Chandler, Val W., Green, John C., 1932-, and Miller, James D., Jr. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Doyle Lake and Finland quadrangl... Minnesota Geological Survey.
2001. Chandler, Val W., Green, John C., 1932-, Miller, James D., Jr., Peterson, Dean M., and Severson, Mark J. Compilation of interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Duluth Complex, s... Minnesota Geological Survey.
2001. Chandler, Val W., Green, John C., 1932-, Miller, James D., Jr., Peterson, Dean M., and Severson, Mark J. Generalized bedrock geology, aeromagnetic data, data base information, scale 1:500,000. Minnesota Geological Survey.
1982. Green, John C., 1932- and Schulz, Klaus J. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Ely quadrangle, scale 1:24,000. Minnesota Geological Survey.