1878
Wheeler, G.M.
1:253k
1878
Wheeler, G.M.
1:253k
1877
Gannett, Henry
1:253k
1846
Preuss, Charles
1:634k
1879
U.S. Geological and Geographical Survey of the Territories
1:507k
1861
Beckwith, E.G.
1:760k
1876
Wheeler, G.M.
1:1m
1866
U.S. General Land Office
1:1m
1897
Rand McNally and Company
1:1m
1879
Mahon, Charles
1:634k