by Thomas W. Dibblee, Jr. ; edited by John A. Minch. Relief shown by contours and spot heights. "Topographic base map from available USGS 7.5-minute quadrangle Cypress Mountain CA 1948. Photorevised 1979. AMS 1855 III SW - Series V895." "First printing, February 2007." "Olaf P. Jenkins memorial map." Includes quadrangle location map, index to adjacent 7.5 minute quadrangles, and index to sources of geology. Includes "pertinent references", most recent 1971.