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Start Over Resource Type Vector data Subject Geology Creator compiled from US Geological Survey sources by Brian B. Quinn, Ph.D. GISP
2009. 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... San Rafael (Calif.). County Of Marin.

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  • compiled from US Geological Survey sources by Brian B. Quinn, Ph.D. GISP 1