1952
United States. Air Force
1:500k
1906
U. S. Geological Survey
1:125k
1879
Geographical and Geological Survey of the Rocky Mountain Region (U.S.)
1:127k
1899
Cram, George Franklin, 1841-1928
1:755k
1899
Cram, George Franklin, 1841-1928
1:755k
1846
Preuss, Charles
1:634k
1874
Asher & Adams
1:1m
1934
Leahy, J.F.
1909
Cram, George Franklin
1:2m
1878
Williams, Edgar.
1:1m