1880
Wheeler, G.M.
1:253k
1882
Bancroft, Hubert Howe.
1901
Murray-Aaron, Eugene, 1852-1941.
1:1m
1879
Wheeler, G.M.
1:253k
1889
Rand McNally and Company
1:1m
1903
Rand McNally and Company
1:1m
1879
U.S. Geological and Geographical Survey of the Territories
1:507k
1870
Dietrich Reimer
1:3m
1879
Hayden, Ferdinand Vandeveer
1:507k
1889
Cram, George
1:1m