by Thomas W. Dibblee, Jr.; edited by John A. Minch. Relief shown by contours and spot heights. Geology 1960-1987. "Prepared in cooperation with the California Department of Conservation, Division of Mines and Geology; and the U.S. Geological Survey." "Robert Wallace Honorary Map." "First printing, February 2002". Includes 2 col. cross sections, quadrangle location map, index to adjacent 7.5 minute quadrangles, and index to sources of geology. Includes "pertinent references".