1873
Walling, H. F.
1:190k
1971
Young, Irene H.
1873
Walling, H. F.
1:190k
1960
Chapman, Lloyd C.
1:250k
1915
U.S. Lake Survey
1:30k
1935
U.S. Lake Survey
1:120k
1916
U.S. Lake Survey
1:120k
1873
Walling, H. F.
1:190k
1951
United States. Air Force
1:500k
1944
State Farm Insurance Companies Travel Bureau
1:1m