1881
Wheeler, G.M.
1:253k
1877
Wheeler, G.M.
1:253k
1877
Wheeler, G.M.
1:253k
1889
(Maxwell Land Grant Company)
1:253k
1849
Whiting, W.H.C.
1:634k
1861
Gunnison, J.W.
1:760k
1946
Schmidt, Ray
1:1m
1882
Thayer, H.L.
1:1m
1941
Schmidt, Ray
1897
Rand McNally and Company
1:2m