1866
Campbell, Archibald
1:60k
1854
U.S. Lake Survey
1:200k
Unknown
1841
US Ex. Ex.
1:142k
1999
1881
1860
Captain G. H. Richards
1910
Clason
1858
U.S. General Land Office
1:1m
1859
Ravenstein, E. G.
1:2m