by Thomas W. Dibblee, Jr. ; edited by John A. Minch.
Relief shown by contours and spot heights.
"The field work for this map was completed as Open File Report OF-80-1100 while Tom Dibblee was with the U.S. Geological Survey. Where appropriate this map has recently been updated and revised by Tom."
"Topographic base map from available USGS 7.5-minute quadrangle RICHMOND, CA 1995, NIMA 1559 IV NE - Series V895"
"First printing, February 2005."
Includes quadrangle location map, index to adjacent 7.5 minute quadrangles, and index to sources of geology.
Includes "pertinent references."