1876
King, Clarence
1:253k
1874
Jones, William A.
1:600k
1879
Rand McNally and Company
1:2m
1880
Mitchell, Samuel Augustus
1:2m
1934
Leahy, J.F.
1861
Gunnison, J.W.
1:760k
1861
Gunnison, J.W.
1:760k
1870
Dietrich Reimer
1:3m
1900
U.S. General Land Office
1:760k
1882
Cram, George Franklin
1:2m