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 Byron Hot Springs, CA1953, AMS 1659 I SW - Series V895, PHOTOREVISED 1968 ; Clifton Court Forebay, CA1978, AMS 1659 I SE - Series V895." "First printing, February 2006." Contour interval 20 feet. "Earl E. Brabb Honorary Map." Includes quadrangle location map, index to adjacent 7.5 minute quadrangles, and index to sources of geology. Includes "pertinent references."