1903
Washington, D.C. : U.S. Geological Survey
1:63k
1901
1:63k
1937
Ventura County (Calif.). Office of the County Surveyor.
1:180k
1922
Dreyfus, Louis G.
1:125k
1930
Reddick, Harry E.
1969
California Division of Mines and Geology
1:250k
1939
Gorham, J.
1978
Alpha, Tau Rho
1880
De Laveaux, Gustave.
1:148k
1938
Eddy, Gerald A.