1880
US NAVY HYDROGRAPHIC OFFICE
1:213k
1871
Corps of Engineers
1:30k
1905
U.S. Lake Survey
1:120k
1946
U.S. Lake Survey
1:120k
1973
U.S. Lake Survey
1:1m
1935
Arnquist, Kathryn
1:300k
1847
projected and drawn under the direction of George Talcott, by A.B. Gray
1:370k
1973
NOS Lake Survey Center
1:600k
1973
NOS Lake Survey Center
1:600k
1956
Shell Oil Company
1:950k