US Geological Survey visual mark

U.S. Geological Survey
Miscellaneous Field Studies MF 2337, Online Version 1.0

Geologic Map and Map Database of Parts of Marin, San Francisco, Alameda, Contra Costa, and Sonoma Counties, California


M. C. Blake Jr., R.W. Graymer, and D.L. Jones

Digital Database by

Adam Soule and R.W. Graymer



This publication describes the evolution and distribution of geologic materials and structures in most of Marin and San Francisco Counties and surrounding areas, part of the San Francisco metropolitan area. The publication includes a geologic map and a pamphlet which discusses the geologic history, stratigraphy, and geologic structures of the area, including parts of the San Andreas Fault system. The discussion includes the development of Franciscan mélange, the source of serpentinite within Franciscan terranes, the development of the structural stacking of terranes within the Franciscan complex, and new estimates for Neogene offset on the Hayward Fault Zone. The publication also includes Arc-Info format map database (GIS) files that enable rapid manipulation and analysis of the geologic information.

Revision List (4 Kb)


View a Digital Map
File Name
File Type and Description
File Size

Browse graphic of the map (JPEG file) as shown in thumbnail image to right


thumbnail image of map
824 Kb
PDF file of map sheet, screen optimized
4.6 MB
PDF file of map pamphlet, screen optimized
140 Kb


Download the Map for Plotting
File Name
File Type and Description
File Size
As a Package
PostScript files of map sheet and pamphlet
(as a gzip compressed tar file)
5.3 MB
PDF plotfiles of map and pamplet
(as a gzip compressed tar file)
4.8 MB
As Individual Files
PDF file of map sheet, plotter optimized
4.6 MB
PDF file of pamphlet, plotter optimized
240 Kb

Download the Database
File Name
File Type and Description
File Size
ASCII text file, Read me
36 Kb
ASCII text file, FGDC-compliant metadata
196 Kb
Arc Info Export (.e00) and supporting files
(as a gzip compressed tar file)
3 MB


Visit the San Francisco Bay Region Project website

Back to Geopubs main page

URL of this page:
Maintained by: Michael Diggles
Created: March 14, 2000
Last modified: May 25, 2005 (mfd)