1878
U.S. Geological and Geographical Survey of the Territories
1:253k
Bechler, G.R. ; Clark, Fred A.
1871
Hergesheimer, E.
1:650k
1879
1:507k
Hayden, Ferdinand Vandeveer
1900
U.S. General Land Office
1:760k
1882
Cram, George Franklin
1:2m
1889
Cram, George
1:1m
