National Geologic Map Database
Title: Preliminary geologic map of eastern Sonoma County and western Napa County, California
Author(s): Fox, K.F., Sims, J.D., Bartow, J.A., and Helley, E.J.
Publishing Organization: U.S. Geological Survey
Series and Number: Miscellaneous Field Studies Map MF-483
- Publication Date: 1973
- Map Scale: 1:62,500
- Cross Section: None
- North Latitude: 38° 50' 0" N (38.8333)
- South Latitude: 38° 15' 0" N (38.2500)
- East Longitude: 122° 15' 0" W (-122.2500)
- West Longitude: 122° 45' 0" W (-122.7500)
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