1968. Chart of Geological Sections A-F prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Metropolitan Area. Scal... Wallace, McHarg, Roberts and Todd.
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1987. McSwiggen, Peter L. Bedrock geology interpretatons and geophysical data interpretations in east-central Minnesota, scale 1:48,000. Minnesota Geological Survey.
1968. Machamer, J.F. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of 17th level of Zenith Mine, scale 1 i... Minnesota Geological Survey.
1968. Machamer, J.F. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of 18th level of Zenith Mine, scale 1 i... Minnesota Geological Survey.
1968. Machamer, J.F. Geology cross section diagrams of Zenith Mine, scale 1 inch = about 100 feet. Minnesota Geological Survey.
506. Geology of clay deposits, Red Wing area, Goodhue and Wabasha Counties, Minnesota, RI-2, Plate 1
1963. Austin, George S. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Red Wing Area, Goodhue and Wabas... Minnesota Geological Survey.
1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). Glacial (Quaternary age glacial and stream sediments and landforms) features of Cook County, Minnesota, scale 1 inch = 5 miles. Minnesota Geological Survey.
1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). Plate 9, Geology map of Township 62 North, Range 4 East, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Minnesota Geological Survey.
1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). Plate 10, Geology map of Townships 60 and 61 North, Range 1 West, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Minnesota Geological Survey.
1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). Plate 11, Geology map of Township 61 North, Range 1 East, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Minnesota Geological Survey.