USGS

Open-File Report 97-745 D

SAN FRANCISCO BAY REGION LANDSLIDE FOLIO PART D -

INDEX TO DETAILED MAPS OF LANDSLIDES IN THE SAN FRANCISCO BAY REGION, CALIFORNIA

By: R.J. Pike

*NOTE - This part was updated on Sept. 22, 1999*

Revision 1 - 22Sep99


This report is a digital database package containing both a plotfile and a Geographic Information Systems (GIS) database of a 7.5 minute quadrangle index for the San Francisco Bay Region, and a list of detailed reports with maps of landslides correlated by 7.5 minute quadrangle. The map data are provided for only the region as a whole, in two formats. The data are provided as an ARC/INFO (Environmental Systems Research Institute, Redlands, CA) coverage for use in GIS packages, and as a PostScript plotfile of a formatted map similar to traditional U.S. Geological Survey map products. There is also a pamphlet available describing the databases and plotfiles, which includes the list of detailed maps and reports. To download databases, plotfiles, or pamphlet, please select the appropriate entry below. Note the disclaimers.

DATA

Digital databases are available for GIS users in ARC/INFO vector COVERAGE format. Those who download digital data should also download the descriptive pamphlet.

The data have been archived as uncompressed Arc/Info export files, then compressed with gzip. Details of gzip and GIS formats as well as links to public-domain software utilities are available on the formats page. File sizes (in parentheses) are for the gzip-compressed download file, followed by the size of the file when uncompressed.

To download the quadrangle index map data, select the following:

 

PLOTFILES

A plotfile is available for those who wish to produce paper copies of maps prepared from the digital data. These maps have been edited to conform as much as possible to standard U.S. Geological Survey format for geologic maps. The plotfiles are in PostScript format. Note that these plotfiles are formatted to plot on 34 by 34 inch or larger sheets, so a large format color plotter is required to produce a paper map. Alternatively, some software can import PostScript files, allowing the user to manipulate the map image as desired. Those who download plotfiles should also download the descriptive pamphlet.

The data have been compressed with gzip. Details of gzip and GIS formats as well as links to public-domain software utilities are available on the formats page. File sizes (in parentheses) are for the gzip-compressed download file, followed by the size of the file when uncompressed.

To download the plotfile, select the following:

PAMPHLET

A descriptive pamphlet is provided, available either as a PDF, a formated PostScript file, formatted for printing on standard 8.5 by 11 inch paper, and as an unformatted text only file. The pamphlet describes the content and character of the database, including details of database structure, and the map, including how the map was produced. This pamphlet contains information important for all those using this report. The pamphlet also includes the list of detailed reports and maps of landslides indexed by 7.5 minute quadrangle.

To view the pamphlet, select one of the following:


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Updated: March 6, 2008 (mfd)