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 Quien Sabe Valley, CA 1968. AMS 1757 I SW -- series V895." "First printing, June 2007." David C. Prowell honorary map. Includes location map, index to adjacent 7.5 minute quadrangles, and index to sources of geology, most recent 1973. Includes "pertinent references", most recent 1999.