1905
U.S. Lake Survey
1:120k
1909
US NAVY HYDROGRAPHIC OFFICE
1:279k
1879
Rand McNally and Company
1:1m
1974
NOS Lake Survey Center
1:500k
1971
NOS Lake Survey Center
1:500k
1967
NOS Lake Survey Center
1:500k
1965
NOS Lake Survey Center
1:500k
1963
NOS Lake Survey Center
1:500k
1961
NOS Lake Survey Center
1:500k
1960
NOS Lake Survey Center
1:500k