Geologic map and digital database of the Yucaipa 7.5' quadrangle, San Bernardino and Riverside Counties, California

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/03-301/metadata.faq.html
Description The Yucaipa 7.5' quadrangle is located at the southeastern margin of the San Bernardino Basin, an extensional region situated within a right-step-over zone between the San Jacinto and San Andreas Fault zones. The quadrangle is traversed by several faults
Originators Matti, Jonathan C.; Morton, Douglas C.; Cox, Brett F.; Carson, Scott E.; and Yetter, Thomas J.

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Landslide

Polygon delineating the planimetric area of a landslide found in coverages whose names begin with ls, ols, or yls

Label Definition
LS Some regions within landslides were apparently unaffected by the landslide (that is, they represent areas bypassed by the landslide but are within its outer boundaries) This attribute is used to distinguish those areas from the landslide itself.

Mapped area

Polygon in the mm coverages, used to indicate the method by which landslides were identified, found in coverages whose names begin with mm.

Label Definition
MM Mapping method