by Thomas W. Dibblee, Jr. ; edited by John A. Minch. Relief shown by contours and spot heights. "Topographic base map from newest available USGS 7.5-minute quadrangle GLENDORA, CA 1972, NIMA 2452 IV SE - Series V895." "Prepared in cooperation with the Santa Barbara Museum of Natural History and the Angeles National Forest." "John S. Shelton Honorary Map." "First printing, July 2002." Includes 2 col. cross sections, quadrangle location map, index to adjacent 7.5 minute quadrangles, and index to sources of geology. Includes bibliographical references.