Open-File Report 97-500
A DIGITAL VERSION OF THE 1970 U.S. GEOLOGICAL SURVEY TOPOGRAPHIC MAP OF
THE SAN FRANCISCO BAY REGION, THREE SHEETS, 1:125,000
By: Douglas S. Aitken
1997
Notes:
1. Documentation files
Download the documentation file:
- README
sftopo.txt
- Documentation file describing content and formats of this
publication in ascii text format (24 KB)
- README
sftopo.ps
- Documentation file describing content and formats of this
publication in postscript format (864 KB)
2. Topographic map database (spatial and attribute GIS) files:
A. Download all the topographic map database layers and supporting materials in ARC/INFO 7.x ASCII EXPORT format, by sheet, packaged in a single UNIX tar file, compressed with gzip:
- Sheet 1 -
sht1.tar.gz
- Includes all the topographic map database layers for sheet 1. (9 MB compressed download size, 38 MB when uncompressed)
- Sheet 2 -
sht2.tar.gz
- Includes all the topographic map database layers for sheet 2. (18.3 MB compressed download size, 86.2 MB when uncompressed)
- Sheet 3 -
sht3.tar.gz
- Includes all the topographic map database layers for sheet 3. (24.3 MB compressed download size, 110.4 MB when uncompressed)
- OR -
B. Download one database layer in ARC/INFO 7.x ASCII EXPORT format, for all three sheets packaged
in a single UNIX tar file, compressed with gzip
- Index Contours -
sfix.tar.gz
- Index contour base map layer (contours or hypsography) (2.8 MB compressed download size, 9.2 MB when uncompressed)
- Intermediate Contours
-
sfir.tar.gz
- Intermediate contour base map layer (contours or hypsography) (19.2 MB compressed download size, 77.8 MB when uncompressed)
- Drainage
-
sfdr.tar.gz
- Drainage base map layer (10.8 MB compressed download size, 39.8 MB when uncompressed)
- Culture
-
sfcu.tar.gz
- Culture base map layer (16.6 MB compressed download size, 63.2 MB when uncompressed)
- Roads
-
sfrd.tar.gz
- Roads base map layer (8.1 MB compressed download size, 41.5 MB when uncompressed)
Return to WRGIS Home Page
The URL for this page is: https://pubs.usgs.gov/of/1997/of97-500/
Please send comments and suggestions, or report problems, to
Michael Diggles
Updated: October 17, 2006 (mfd)