1876
Thompson & West
1:190k
1945
Prendergast
1876
Thompson & West
1:32k
1978
Alpha, Tau Rho
1885
Geological Survey (U.S.); Bodfish, S. W.
1:15k
1951
Shell Oil Company
1:38k
2005
Silicon Valley, Inc.
1938
Thomas Brothers
1:19k
1970
Alpha, Tau Rho
1873
Geological Survey of California
1:127k