National Geologic Map Database
General Information
- Title: Quaternary geology of Alameda County and parts of Contra Costa, Santa Clara, San Mateo, San Francisco, Stanislaus, and San Joaquin Counties, California
- Author(s): Helley, E.J., and Graymer, R.W.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Open-File Report OF-97-97
- Publication Date: 1997
- Map Scale: 1:100,000
- Cross Section: None
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Additional Resources
- Links and Downloads:
- Publication (includes original ARC/INFO 7.x GIS data)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.