1982
1:24k
1963
1:63k
1949
1:48k
1981
1:100k
1936
Upper Peninsula Development Bureau
1935
U.S. Lake Survey
1:15k
1964
1:80k
1873
Walling, H. F.
1:380k
1897
League of American Wheelmen, Wisconsin Division
1:253k
1954
1:250k