You searched for: Publisher Minnesota Geological Survey Remove constraint Publisher: Minnesota Geological Survey Place Minnesota Remove constraint Place: Minnesota Time Period 1850-1899 Remove constraint Time Period: 1850-1899

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4. Preliminary geological map of Minnesota

Maps maps University Of Minnesota university-of-minnesota
1872. Winchell, Newton H., 1839-1914. Geologic map of Minnesota, scale 1 inch = 20 miles. Minnesota Geological Survey.