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Open-File Report 02-272

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# Digital Version of "Open-File Report 92–181: Geologic Map of the Indian Spring Quadrangle, San Bernardino County, California"

#### By Howard G. Wilshire, David R. Bedford, Teresa Coleman

| Introduction
This is a digital map database version of a previous printed geologic map, U.S. Geological Survey Open-File Report 92–181. The original paper map has been faithfully reproduced as a geologic map database for use in a GIS, and thus does not contain updated geologic information for the map area.     This publication consists of three parts:
- Documentation in the form of a this publication's Open File text, or readme, describing the digital data, how to obtain it, as well as the original map explanation pamphlet. The documentation also consists of FGDC metadata, and a file describing any revisions to the data in this report. All of the documentaion components are available in a variety of file formats.
- Three Arc/Info (ESRI) formatted coverages of the geologic database, distributed in Arc Interchange (e00) format. The spatial databases in this component of the report consist vector-based GIS datasets that represent geologic contacts, faults, map units, and volcanic vents in the study area, as well as localities of K/Ar samples discussed in the original report, and geologic structure measurements.
- Plottable map representations of the database at 1:24,000 scale in PostScript and Adobe PDF formats. The plottable files consist of a color geologic map derived from the spatial database, composited with a topographic base map in the form of the USGS Digital Raster Graphic for the map area. Color symbology from each of these datasets is maintained, which can cause plot file sizes to be large.   | First posted April 30, 2002

Version history
- **Metadata** TXT (31 kB)
- **Metadata** HTML (47 kB)
- **Metadata** FAQ (32 kB)
-  **Report** PDF (169 kB)
- **Report** TXT (83 kB)
- **Report** EPS (814 kB) 

**Spatial data**
- **Data** E00 (1.8 MB)    Arc Export (e00) file of geologic contacts, faults, and map units and volcanic-vent identifiers 
- **Data** E00 (8 kB)    Arc Export (e00) file of K/Ar sample localities 
- **Data** E00 (173 kB)    Arc Export (e00) file of structural measurements 
- **Data** TAR (2 MB)    Archive (tar) file of all three Arc Export files, metadata (text), and Arc/Info aml to import coverages 

**Plottable map files**
- **Map** PDF (4.9 MB)  22 x 32 inch image of the geologic map, at a scale of 1:24,000 
- **Map** EPS.GZ (5.5 MB)  22 x 32 inch image of the geologic map, at a scale of 1:24,000 (PostScript, Gzip compressed) 
-  **Order a Paper version from the USGS Store**  From this link, you can order  Print-on-Demand. 

The National Geologic Map Database has additional data about this publication

**For additional information, contact:**          Geology, Minerals, Energy, and Geophysics Science CenterU.S. Geological Survey345 Middlefield Road, MS 901Menlo Park, CA 94025-3591http://geomaps.wr.usgs.gov/gmeg/

Part or all of this report is presented in Portable Document Format (PDF). For best results viewing and printing PDF documents, it is recommended that you download the documents to your computer and open them with Adobe Reader. PDF documents opened from your browser may not display or print as intended. Download the latest version of Adobe Reader, free of charge. |
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### Suggested citation:

Wilshire, Howard G., Bedford, David R., Coleman, Teresa, 2002, Digital Version of "Open-File Report 92–181: Geologic Map of the Indian Spring Quadrangle, San Bernardino County, California", U.S. Geological Survey Open-File Report 02-272, 27 pp., *https://pubs.usgs.gov/of/2002/0272/*.

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U.S. Department of the Interior |            U.S. Geological Survey           	URL: *http://pubsdata.usgs.gov/pubs/of/2002/0272/index.html*            Page Contact Information: GS Pubs Web Contact           	Page Last Modified: Wednesday, 07-Dec-2016 19:26:57 EST