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 Caldwell Mesa, CA 1995, NIMA 1954 I NE -- Series V895." "First printing, March 2006." "Harold E. Syms Honorary Map." Includes quadrangle location map, index to adjacent 7.5 minute quadrangles, and index to sources of geology. Includes "pertinent references", most recent 1991.