1878
Wheeler, G.M.
1:253k
1876
King, Clarence
1846
Preuss, Charles
1:634k
1952
United States. Air Force
1:500k
1845
Fremont John Charles, 1813-1890
1:285k
1861
Beckwith, E.G.
1:760k
U.S. Geological and Geographical Survey of the Territories
1:507k
1858
Campbell, Albert
1:6m
