Geologic Map of the East of Grotto Hills Quadrangle, California: A Digital Database

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/99-35/metadata.faq.html
Description This digital map database represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text file (egh_geo.txt, egh_geo.pdf or egh_geo.ps), it provides current information on the geologic structu
Originators Nielson, Jane E. and Bedford, David R.
Publication U.S. Geological Survey Open-File Report 99-35

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