1848. Graves, Richard, Strong, Richard, Mattke, Ryan, Kne, Len, Shepard, Coleman, and Kernik, Melinda. These shapefiles of lakes, streams, wetlands, river bottoms, and the Mississippi River represent the hydrological landscape of Minneapolis and St. ... University of Minnesota.
1848. Dubuque Land Office. Military Reservation of Fort Snelling, missing area south of the Mississippi. Minnesota Geospatial Information Office (MnGeo).