1947
Lindgren, Jolly
1878
U.S. Geological and Geographical Survey of the Territories
1:253k
1878
Bechler, G.R. ; Clark, Fred A.
1:253k
1879
U.S. Geological and Geographical Survey of the Territories
1:507k
1879
Hayden, Ferdinand Vandeveer
1:507k
1880
Mitchell, Samuel Augustus
1:2m
1900
U.S. General Land Office
1:760k
1882
Cram, George Franklin
1:2m
1900
U.S. General Land Office
1:760k
1889
Cram, George
1:1m