ID:DA14187522
Minnesota. Geological Survey
University of Minnesota. Geological Survey
University of Minnesota. Minnesota Geological Survey
Geological and Natural History Survey of Minnesota
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by Frank F. Grout and George M. Schwartz
University of Minnesota Press 1933 Bulletin (Minnesota Geological Survey) 24
Available at 1 libraries
by N.H Winchell ; assisted by Ulysses S. Grant ... [et al.]
Pioneer Press 1888-
v. 2, 1882-1885 , v. 4, 1896-1898
Available at 2 libraries
Minnesota Department of Natural Resources, Department of Waters
Minnesota Department of Natural Resources, Division of Waters