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Map of Debris-Flow Source Areas in the San Francisco Bay Region, California
Entry ID: USGS_OFR_97_745_E

Abstract: This report is a digital database package containing both plotfiles and
Geographic Information Systems (GIS) databases of maps of potential debris flow
sources, as well as locations of historic debris flow sources, in the San
Francisco Bay Region. The data are provided for both the entire region and each
county within the region, in two formats. The data are provided as ARC/INFO
(Environmental Systems Research Institute, Redlands, CA) coverages and grids
for use in GIS packages, and as PostScript plotfiles of formatted maps similar
to traditional U.S. Geological Survey map products.

[Summary provided by the USGS.]
Related URL
Description: San Francisco Bay Region Landslide Folio Home Page.
Geographic Coverage
Spatial coordinates   
  N: 37.0   S: 29.0   E: -121.0   W: -124.0

Data Set Citation
Dataset Originator/Creator: S.D. Ellen, R.K. Mark, G.F. Wieczorek, C.M. Wentworth, D.W. Ramsey, and T.E. May
Dataset Title: Map of Debris-Flow Source Areas in the San Francisco Bay Region, California
Dataset Series Name: Open-File Report 97-745 E
Dataset Publisher: U.S. Geological Survey
Version: Not provided
Data Presentation Form: GIS Map
Temporal Coverage
Start Date: 1970-01-01
Quality This is preliminary and has not been reviewed for conformity with U.S.
Geological Survey editorial standards or with the North American Stratigraphic
Use Constraints Although this database has been subjected to rigorous review and is
substantially complete, the USGS reserves the right to revise the data pursuant
to further analysis and review. Furthermore, it is released on condition
that neither the USGS nor the United States Government may be held liable
for any damages resulting from its authorized or unauthorized use.
Data Set Progress
Data Center
Publications-Western Region,Geological Division, U.S. Geological Survey, U.S. Department of the Interior Supplemental Info
Data Center URL:

Data Center Personnel
Phone: 650-329-5015
Fax: 650-329-5119
Email: cdonlin at
Contact Address:
U.S. Geological Survey
Geology Division
345 Middlefield Road
City: Menlo Park
Province or State: California
Postal Code: 94025
Country: USA
Distribution Media: Online
Distribution Format: Arc/Info
Fees: No fees

Distribution Media: Online
Distribution Format: GRID
Fees: No fees
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2004-08-17
Last DIF Revision Date: 2018-12-18