R. C. Crane (1995). "Geology of Mount Diablo Region and East Bay Hills". In E. M. Sangines; D. W. Andersen; A. B. Buising (eds.). Recent Geologic Studies in the San Francisco Bay Area. Vol. 76. Pacific Section, Society for Sedimentary Geology (S.E.P.M.). pp. 87–114. Retrieved July 3, 2024.