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 Laguna Seca Ranch, CA 1956, photorevised 1971, DMA 1857 IV SE -- series V895; Hammonds Ranch, CA 1956, photorevised 1984, DMA 1857 I SW -- series V895." "First printing, June 2007." Thomas A. Baldwin memorial map. Includes location map, index to adjacent 7.5 minute quadrangles, and index to sources of geology, most recent 1974. Includes "pertinent references", most recent 1972.