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A new geological map of Wisconsin prepared mostly from original observations; by I.A. Lapham.
- Lapham, Increase Allen, 1811-1875.
- 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.
- Clark Library Map Collections
- Wisconsin, United States
- Geological maps
- 1869\, c1868
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