1879
Wheeler, G.M.
1:253k
1877
Gannett, Henry
1:253k
1879
U.S. Geological and Geographical Survey of the Territories
1:507k
1879
Hayden, Ferdinand Vandeveer
1:507k
1882
Bancroft, Hubert Howe.
1882
Bancroft, Hubert Howe.
1870
Dietrich Reimer
1:3m
1889
Cram, George
1:1m
1889
Cram, George
1:1m
1882
Cram, George Franklin
1:2m