1875
Bergland, Eric
1:1m
1879
Wheeler, G.M.
1:253k
1881
Hayden, F.V.
1:253k
1861
Gunnison, J.W.
1:760k
1878
Cram, George Franklin
1879
Rand McNally and Company
1:2m
1909
Cram, George Franklin; Davis, Ellis Arthur
1:2m
1884
Mitchell, Samuel Augustus Jr.
1:2m
1881
Page, H.R. & Co.
1:2m
1880
Rand, McNally
1:800k