1. Geoscience Data Catalog

Geologic map and digital database of the Porcupine Wash 7.5 minute quadrangle, Riverside County, California

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/01-30/metadata.faq.html
Description This data set maps and describes the geology of the Porcupine Wash 7.5 minute quadrangle, Riverside County, southern California. The quadrangle, situated in Joshua Tree National Park in the eastern Transverse Ranges physiographic and structural province,
Originators Powell, Robert E. and Cossette, Pamela M.
Publication U.S. Geological Survey Open-File Report USGS OF 01-30

Related topics

Bedrock geologic units, Faulting (geologic), Geologic maps, Geologic structure, Geology, Geospatial datasets, Metamorphic rocks, Plutonic rocks, Surficial geologic units, GeoscientificInformation

States or counties

Riverside

arcs

Characteristics of the arc feature in coverage 'wildcatgeo' are coded in the 'wildcatgeo.aat' file, the arc attribute table. The .aat file consists of the item, ARC-CODE and LINETYPE.

Label Definition
arc-code Arc-code is a positive integer value item in the arc attribute table. Values range from 0 to 99. Arc-code describes the stratigraphic boundary, fault, or other linear feature.

polygons

Characteristics of the polygon features are coded in the polygon attribute table (.pat file). Table 'wildcatgeo.pat' includes the following items: CLASS and ULABEL (geologic unit label).

Label Definition
Class CLASS is a positive integer value item in the polygon attribute table (.pat). Values range from 0 to 124. The table "wildcatgeo.lut" contains CLASS and the corresponding geologic label.