1901
U. S. Geological Survey
1:125k
1956
Shell Oil Company
1964
Pargeter, Richard A.
1870
White, Charles A.
1:253k
1877
Hanson, John
1:380k
1952
United States. Air Force
1:500k
1975
Alpha, Tau Rho
1910
Clason
1934
Double, Lee R.
1919
Kroll Map Company
1:653k