1899
Walcott, Charles D.
1:500k
1902
Fitch, Charles H.
1:500k
1884
Mitchell, Samuel Augustus Jr.
1:1m
1861
Gunnison, J.W.
1:760k
1924
Rand McNally and Company
1877
Thompson, Thos. H.
1:32k
1886
Colton, G.W.
1:2m
1873
Gray, O.W.
1:2m
1850
Mitchell, Samuel Augustus
1:2m
1876
U.S. General Land Office
1:760k