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
Creator:
compiled from US Geological Survey sources by Brian B. Quinn, Ph.D. GISP