by Thomas W. Dibblee, Jr. ; edited by John A. Minch. Relief shown by contours and spot heights. "Richard Sedlock honorary map." "Topographic base map from available USGS 7.5-minute quadrangle Castle Rock Ridge CA 1997. NIMA 1558 II NE - series V895." "First printing, October 2007." Includes quadrangle location map, index to adjacent 7.5 minute quadrangles, and index to sources of geology, most recent 1979. Includes "pertinent references", most recent 1977.