INTRODUCTION The
geologic map and digital database of the San Bernardino Wash quadrangle
are products of a regional geologic mapping effort undertaken in the eastern
Transverse Ranges in and around Joshua Tree National Park. This investigation,
part of the Southern California Areal Mapping Project (SCAMP), is conducted
in cooperation with the California Geologic Survey and the National Park
Service. In line with the goals of the National Cooperative Geologic Mapping
Program (NCGMP), mapping of the San Bernardino Wash and other quadrangles
has been directed toward generating a multipurpose digital geologic map
database that is applicable to land-related investigations in the earth
and biological sciences. This mapping is conducted to further understanding
of bedrock geology and surficial processes in the region and to document
evidence for seismotectonic activity in the eastern Transverse Ranges.
It is also intended to serve as a base layer suitable for ecosystem and
mineral resource assessment and for building a hydrogeologic framework
for Pinto Basin. Initial investigations span Pinto Basin from the Hexie and Eagle Mountains northward into the Pinto Mountains (see fig. 1). Quadrangles mapped include the Conejo Well 7.5-minute quadrangle (Powell, 2001a), the Porcupine Wash 7.5-minute quadrangle (Powell, 2001b), the Pinto Mountain 7.5-minute quadrangle (Powell, 2002), and the San Bernardino Wash 7.5-minute quadrangle. Parts of the San Bernardino Wash quadrangle had been mapped previously at a variety of scales (Weir, and Bader, 1963; Hope, 1966, 1969; Jennings, 1967; Powell, 1981, 1993). |
Learn more about the San Bernardino Wash data set and its contents
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This
illustration is a .gif non-navigable image of the USGS geologic-map plot
of the San Bernardino Wash quadrangle |
User note: IT IS NOT A PERFECT WORLD. Different platforms, different internet browsers, and different de-compression software handle downloads in different ways. If you need assistance downloading the files below, please see our help page.
File
Name
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File
Type and Description
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File
Size
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README's
and METADATA
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PDF version of the readme file that explains how to use the digital database. |
280
KB
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HTML file of the FGDC-compliant metadata |
84
KB
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DATA
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Compressed tar file of the digital database for this map |
2.3
MB
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FILES
for VIEWING and PLOTTING
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Compressed
PostScript file used for plotting a paper copy of the map
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7.6
MB
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sbwash_pamph.pdf | PDF pamphlet that includes geologic descriptions |
880
KB
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PDF
document version of this map
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11.2
MB
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Visit the GeoScience Node of the National Spatial Data Clearinghouse to find other geologic-map datasets in southern California or elsewhere in the Nation Download a free copy of Adobe Acrobat Reader For questions about the content of this report, contact Robert Powell |
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| Department of the Interior | U.S. Geological Survey | Geologic Division | Earth Surface Processes |
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