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 PALM SPRINGS, CA 1957, AMS 2651 I SE -- Series V895, PHOTOREVISED 1972." "First printing, August 2004." Includes quadrangle location map, index to adjacent 7.5 minute quadrangles, and index to sources of geology. "Robert Sydnor Honorary Map." Includes "pertinent references."