USGS

U.S. Geological Survey
Open-File Report 98-460

Quaternary Geology and Liquefaction Susceptibility, Napa, California 1:100,000 Quadrangle: A Digital Database

By: Janet M. Sowers, Jay S. Noller and William R. Lettis

1998

thumbnail of map

View the database explanation pamphlet as an unformatted, text-only file: na_db.txt (30 kB)

View the database explanation pamphlet as a formatted PDF file: na_db.pdf (22 kB)

Download the database explanation pamphlet as a formatted PostScript plot file: na_db.ps (46 kB)

View the geologic explanation pamphlet as an unformatted, text-only file: na_geo.txt (47 kB)

View the geologic explanation pamphlet as a formatted PDF file: na_geo.pdf (84 kB)

Download the geologic explanation pamphlet as a formatted PostScript plot file: na_geo.ps (7.5 MB)

View the Quaternary geologic map sheet as a PDF file: na_plate1.pdf (5.1 MB)

View the liquefaction map sheet as a PDF file: na_plate2.pdf (5.1 MB)

Download the database package in ARC/INFO 7.x uncompressed export format along with supporting materials in a compressed UNIX tar file (see the database explanation pamphlet for details): na_data.tar.gz (14.8 MB compressed download file, 52.6 MB when uncompressed)

Download three Postscript plottable files containing images of the Quaternary geologic, and liquefaction maps, at a scale of 1:100,000, and explanatory text in a compressed UNIX tar file (see the database explanation pamphlet for details): na_ps.tar.gz (16.8 MB compressed download file, 48.7 MB when uncompressed)

Download three PDF files containing images of the Quaternary geologic, and liquefaction maps, at a scale of 1:100,000,ls *.and explanatory text in a compressed UNIX tar file (see the database explanation pamphlet for details): na_pdf.tar.gz (10.2 MB compressed download file, 10.2 MB when uncompressed)



For more information on the geology
of the San Francisco Bay region:
Visit the sfgeo website


tiny map of western U.S. Go to Western Region Geologic Information home page
The URL for this page is: https://pubs.usgs.gov/of/1998/of98-460/
Maintained by: Michael Diggles
Please send comments about the contents of the report to Carl Wentworth
Updated: July 3, 2006 (mfd)