- compiled from US Geological Survey sources by Brian B. Quinn, Ph.D. GISP
- Marin county-wide geology compiled from four USGS publications and 2004 topographic mapping - Open-File Report (1997) OFR97-456 for Point Reyes and the San Andreas Fault Zone, 1:48000 - Miscellaneous Field Study (2000) MF-2337 for parts of Marin, San Francisco, and Contra Costa counties, 1:75000 - portion of Miscellaneous Field Study (2005) MF-2402 for northernmost Marin and western Sonoma counties, 1:62500 - portion of Scientific Investigations Map (2007) SIM-2956 for eastern Sonoma county, 1:62500
- San Rafael (Calif.). County Of Marin.
- Marin County (Calif.)
- Held by:
|Click on map to inspect values|