1893
U.S. Lake Survey
1:380k
1948
Hammond, C.S.
1:1m
1956
Shell Oil Company
1:887k
1866
Farmer, John
1:760k
1857
Colton, G.W.
1:2m
1856
Colton, G.W.
1:2m
1866
Colton, G.W.
1:2m
1924
Rand McNally and Company
1:1m
1950
United States. Post Office Department
1:575k
1950
United States. Post Office Department
1:575k