1882
Dutton, Clarence E. (Clarence Edward), 1841-1912
1:250k
1901
U.S. Geological Survey
1:250k
1873
Wheeler, G.M.
1:507k
1879
Geographical and Geological Survey of the Rocky Mountain Region (U.S.)
1:127k
1879
Geographical and Geological Survey of the Rocky Mountain Region (U.S.)
1:317k
1879
Thompson, A. H. (Almon Harris), 1839-1906
1:253k
1879
Thompson, A. H. (Almon Harris), 1839-1906
1:253k
1882
Dutton, Clarence E. (Clarence Edward), 1841-1912
1:250k
1869
Wheeler, G.M.
1:760k
1866
U.S. General Land Office
1:1m