1879
U.S. Geological and Geographical Survey of the Territories
1:507k
1881
Heubach, Emil
1:750k
1948
Hammond, C.S.
1:2m
1882
Cram, George Franklin
1:2m
1875
Cram Atlas Company
1:1m
1938
Thomas Brothers
1:2m
1879
U.S. General Land Office
1:1m
1879
Rand McNally and Company
1:2m
1909
Rand McNally and Company
1:2m
1924
Rand McNally and Company