National Geologic Map Database
General Information
- Title: Flood-prone areas in the Sonoma Creek drainage basin, Sonoma and Marin Counties, California, including Glen Ellen, Sonoma, Sears Point, and Petaluma Point 7 1/2-minute quadrangles
- Author(s): U.S. Geological Survey
- Publishing Organization: U.S. Geological Survey
- Series and Number: Basic Data Contribution No. 16
- Publication Date: 1971
- Map Scale: 1:24,000
- Cross Section: None
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- U.S. Geological Survey
- USGS Information Services
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- Phone: (303) 202-4700 or 1-888-ASK-USGS
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.