1904
Corps of Engineers
1:25k
1973
U.S. Lake Survey
1:80k
1911
1:120k
1935
U.S. Lake Survey
1:15k
1897
League of American Wheelmen, Wisconsin Division
1:253k
1842
Tanner, Henry S.
1:1m
1846
Mitchell, Samuel Augustus
1:1m
1927
Rand McNally and Company
1:2m
1874
Colton, G.W.
1:1m
1857
Colton, G.W.
1:1m