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 Crevison Peak, CA 1955 photorevised 1971, AMS 1758 II NW -- Series V895; Howard Ranch, CA 1999, NIMA 1758 II NE -- series V895." "First printing, August 2007." Includes quadrangle location map, index to adjacent 7.5 minute quadrangles, and index to sources of geology. John Cooper memorial map. Includes "pertinent references", most recent published in 1975.