U.S. Geological Survey Open-File Report 02–274

**Digital Version of "Open-File Report 92–179: Geologic Map of the Cow Cove Quadrangle, San Bernardino County, California"**

*Geology by*

**Howard G. Wilshire**

*GIS database by*

**David R. Bedford and Teresa Coleman**

|  |
|--|

| **INTRODUCTION**
     This is a digital map database version of a previous printed geologic map, U.S. Geological Survey Open-File Report 92–179. 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:1) 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.      2) 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.      3) 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. |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Files Available for Downloading |
|---------------------------------|
||
||
| of02-274_1revs.txt              | Revision list of contents and changes to the parts of this report | 2 KB |
| of02-274_1a.txt                 | Text of this report and original Open-File Report (ASCII) | 83 KB |
| of02-274_1a.pdf                 | Text of this report and original Open-File Report (PDF) | 167 KB |
| of02-274_1a.eps                 | Text of this report and original Open-File Report (PostScript) | 809 KB |
| of02-274_1b.txt                 | FGDC metadata (ASCII) | 30 KB |
| of02-274_1b.html                | FGDC metadata (html) | 45 KB |
| of02-274_1b2.html               | FGDC metadata (FAQ html) | 30 KB |
||
| of02-274_2a.e00                 | Arc Export (e00) file of geologic contacts, faults, and map units and volcanic-vent identifiers | 763 KB |
| of02-274_2b.e00                 | Arc Export (e00) file of K/Ar sample localities | 6 KB |
| of02-274_2c.e00                 | Arc Export (e00) file of structural measurements | 40 KB |
| of02-274data.tar                | Archive (tar) file of all three Arc Export files, metadata (text), and Arc/Info aml to import coverages | 900 KB |
||
| of02-274_3a.pdf                 | 22 x 32 inch image of the geologic map, at a scale of 1:24,000 (PDF) | 3 MB |
| of02-274_3a.eps.gz              | 22 x 32 inch image of the geologic map, at a scale of 1:24,000 (PostScript, Gzip compressed) | 2.9 MB(21.1 MBuncompressed) |

For questions about the content of this report, contact David Bedford.

Download Adobe Acrobat Reader for viewing PDF files for free.

| Download help | PDF help | Geopubs main page | Open-File Reports for 2002 | 

| U.S. Department of the Interior | U.S. Geological Survey  | Geologic Division | Western Earth Surface Processes |

This report is available only on the Web

----

Privacy statement
Disclaimer
Accessibility
Carolyn Donlin