1902
1:63k
1913
Denny, Edward & Co.
1:125k
1965
Dudley, Leavitt
1:250k
1937
Ventura County (Calif.). Office of the County Surveyor.
1:180k
1930
Reddick, Harry E.
1861
Williamson, R.S.
1:240k
1969
California Division of Mines and Geology
1:250k
1881
Wheeler, G.M.
1:253k
1978
Alpha, Tau Rho
1878
US Geological Survey
1:507k