1881
Wheeler, G.M.
1:253k
1877
Wheeler, G.M.
1:253k
1877
Wheeler, G.M.
1:253k
1889
1:125k
1900
U. S. Geological Survey
1:125k
1889
(Maxwell Land Grant Company)
1:253k
1909
Cram, George Franklin; Davis, Ellis Arthur
1:2m
1876
Wheeler, G.M.
1:253k
1877
Wheeler, G.M.
1876
Wheeler, G.M.
1:253k