1882
Wheeler, G.M.
1:507k
1849
Whiting, W.H.C.
1:634k
1883
(U.S. War Department) Office of the Chief of Engineers, U.S.A.
1:475k
1807
Humboldt, Alexander von, 1769-1859
1:2m
1944
United States. Department of Commerce
1:500k
1878
1:253k
1861
Parke, John G.
1:760k
1897
Rand McNally and Company
1879
U.S. General Land Office
1:1m
