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Geologic Highlights of the San Francisco Bay
Region
Doris Sloan
with photographs by
John Karachewski
Earth Day ECL Presentation
April 22, 2009
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Chapter 4 Marin County
Bolinas Lagoon and Point Reyes Peninsula
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Geologic Map of Marin Co.
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Pt. Reyes Lighthouse
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Pt. Reyes Conglomerate
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McClures Beach, Pt. Reyes National Seashore
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Kehoe Beach, Pt. Reyes National Seashore
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Drakes Bay/Purisima Formation, Drakes Beach, Pt. Reyes
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Nicasio Reservoir, Golden Gate National Recreation Area
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Marin Headlands, Golden Gate National Recreation Area
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Pt. Bonita Lighthouse
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Ring Mountain Preserve
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Chapter 5 San FranciscoSunrise
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Geologic Map of San Francisco
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Richmond District, 1900San Francisco History Center San Francisco Public Library
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Ocean Beach, Golden Gate National Recreation Area
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Golden Gate National Recreation Area
San Francisco
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Artificial Fill since 1847
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South of Market Area
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Chapter 6, The Bay and Islands
Angel Island
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Sea-level lowstand, 20,000 years ago K. Kalamars
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Chapter 7 The Peninsula
Año Nuevo State Reserve
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San Gregorio State Beach
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San Gregorio State Beach
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Pebble Beach, Pescadero State BeachUSGS
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James Fitzgerald Marine Reserve
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Terraces near Davenport
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Chapter 8, The South Bay
Diablo Range
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Almaden Quicksilver Mine Photo by C.E. Watkins in Up and Down California, by Wm. Brewer
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Almaden Quicksilver County Park
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Los Trancos Open Space Preserve
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Chapter 9, The East Bay
Mount Diablo and Delta
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Geologic Map of the East Bay
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Mt. Diablo and Sierra Nevada
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Black Diamond Mines Regional Preserve
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Sand Mine, Black Diamond Mines Regional Preserve
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Chapter 10, The North Bay
Mount St. Helena
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Geologic Map of the North Bay
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Silverado Trail, Napa Valley
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The Geysers, 1920s The Bancroft LibraryUniversity of California
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Jack London Winery, Sonoma County