Geologic map of the Jacumba 15 minute quadrangle [cartographic material] : San Diego and Imperial Counties, California / by Thomas W. Dibblee, Jr. ; edited by John A. Minch.
"Topographic base map from available USGS 15-minute quadrangle ... Jacumba, CA 1959. AMS 2749 II - Series V795." "First printing, September 2008." Includes location map, index to adjacent 15 minute quadrangles and index to sources of geology, most recent 1972. Relief shown by contours and spot heights. "Contour interval 80 feet." "Diane and Monte Murbach honorary map."
- Santa Barbara Museum of Natural History
- Held by
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