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.
Creator:
Minnesota. State Drainage Commission.; Geological Survey (U.S.)
Created:
1909
Contributed By:
University of Minnesota Libraries, John R. Borchert Map Library.
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.
Creator:
Minnesota. State Drainage Commission.; Geological Survey (U.S.)
Created:
1909
Contributed By:
University of Minnesota Libraries, John R. Borchert Map Library.