1951
Shell Oil Company
1:51k
1860
Captain G. H. Richards
1854
U.S. Lake Survey
1:200k
1866
Unknown
1:200k
1866
Campbell, Archibald
1:60k
1900
U.S. Coast Survey
1:200k
1881
1:200k
1910
Clason
1924
Rand McNally and Company
1:950k
1885
Page, H.R. & Co.
1:1m