1939
Lindgren Brothers
1879
Geographical and Geological Survey of the Rocky Mountain Region (U.S.)
1:634k
1883
Cram, George Franklin
1:2m
1878
Powell, John Wesley, 1834-1902.
1:630k
Rand McNally and Company
1891
Appleton, D. & Co.
1873
Wheeler, G.M.
1:507k
1901
Murray-Aaron, Eugene, 1852-1941.
1:1m
1889
1903
