Entered for copyright by both Lapham and Silas Chapman. "Lith. by L. Lipman, Milmaukee." Includes "Geological section, from Prairie du Chien to Milwaukee." 1 map: col.; 56 x 51 cm, on sheet 71 x 56 cm This map is in the public domain. Please attribute access and use of this digitized map to the Stephen S. Clark Library, University of Michigan Library.