1918
1985
Coney, Peter
1:435k
1882
Dutton, Clarence E. (Clarence Edward), 1841-1912
1:1m
1960
Bloodgood, Don
1968
Bloodgood, Don
1879
Geographical and Geological Survey of the Rocky Mountain Region (U.S.)
1:634k
1858
Ives, J.C.
1:760k
1858
Ives, J.C.
1:760k
1866
U.S. General Land Office
1:1m
1966
O'Brien, Emmett J
1:63k