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: Coalinga, CA 1956, photorevised 1979, DMA 1956 III NE -- Series V895; Guijarral Hills, CA 1956, photorevised 1971, AMS 1956 II NW -- Series V895." "First printing, March 2007." Includes quadrangle location map, index to adjacent 7.5 minute quadrangles, and index to sources of geology. Includes "pertinent references."