Preliminary geologic map of the San Fernando 7.5' quadrangle, southern California: A digital database

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/97-163/metadata.faq.html
Description This Open-File report is a digital geologic map database. This digital map database is compiled from previously published sources combined with some new mapping and modifications in nomenclature. The geologic map database delineates map units that are
Originators Yerkes, Robert F.
Publication U.S. Geological Survey Open-File Report 97-163

Related topics

States or counties

Overview of attributes

Geographic features (lake
bathymetry, pre-dam topography, sediment thickness) are
shown as color-contour map images at an unspecified
projection and scale.  These map images are rendered
in Graphic Interchange Format (GIF).

http://pubs.usgs.gov/of/2003/0383/