
1879
Geographical and Geological Survey of the Rocky Mountain Region (U.S.)
1:634k

1876
Wheeler, G.M.
1:1m

1878
Cram, George Franklin

1863
Weekly Dispatch; Weller, Edward, 1819-1884
1:100k

1866
U.S. General Land Office
1:1m

1966
O'Brien, Emmett J
1:63k

1897
Rand McNally and Company
1:1m

1879
U.S. General Land Office
1:950k

1879
Mahon, Charles
1:634k

1875
Cram Atlas Company
1:1m