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Location map of the El Cajon 30' x60' Quadrangle, Southern California.
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Selected geologic map information
Todd, Victoria R., 2004,
Preliminary geologic map of the El Cajon 30' x 60' quadrangle, Southern California: U.S. Geological Survey Open-File Report
2004-1361 <http://pubs.usgs.gov/of/2004/1361/>.
Jachens, Robert C.,
1992, Aeromagnetic map of the El Cajon 1:100,000 scale Quadrangle, California: U.S. Geological Survey Open-File Report
92-548. |
