River surveys : [maps and profiles to accompany report of the water resources investigation of Minnesota, 1909-1912], Volume 1
Cartographic Details: Scales vary. Adolph O. Eberhart, Samuel G. Iverson, Julius A. Schmidt, State Drainage Commission; George A. Ralph, chief engineer; Robert Follansbee, district engineer, U.S. Geological Survey.
45 x 51 centimeters or larger
Historical Minnesota River Surveys
Geological Survey (U.S.) and Minnesota. State Drainage Commission.
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