California Geology
All sorts of content about California geology: its rocks, landforms and deep history.
Geologic Map of California
Even this simplified map of the state's rocks is complicated.
Even this simplified map of the state's rocks is complicated.
California Peaks
Because geology is beautiful.
Because geology is beautiful.
Serpentinite, the State Rock
This blue-green stone occurs all over the state, but seldom in boulders as fine as this museum specimen.
This blue-green stone occurs all over the state, but seldom in boulders as fine as this museum specimen.
Geologic Destinations for California Tourists
If you're going to California, be sure to put some of these geologic attractions on your must-see list.
If you're going to California, be sure to put some of these geologic attractions on your must-see list.
San Andreas Fault Home Page
All about the San Andreas fault, including maps, books, photo tours and seismic information.
All about the San Andreas fault, including maps, books, photo tours and seismic information.
USGS: California Geology Reference Information
All on one page is the U.S. Geological Survey's full range of educational resources (rocks, energy, volcanoes, hazards and much more) devoted to California. Great for teachers.
All on one page is the U.S. Geological Survey's full range of educational resources (rocks, energy, volcanoes, hazards and much more) devoted to California. Great for teachers.
California Geotour
A very handy link list for virtual tours of geologic highlights all over the state, courtesy of the California Geological Survey (CGS).
A very handy link list for virtual tours of geologic highlights all over the state, courtesy of the California Geological Survey (CGS).
Treasure Tales of California
Thegeozone.com presents detailed information on lost mines and lodes from California.
Thegeozone.com presents detailed information on lost mines and lodes from California.
California Coast Geology
A survey of California's coastal geologic attractions, from north to south.
A survey of California's coastal geologic attractions, from north to south.
California Subduction Rocks
A photographic field trip to classic subduction-related rocks across northern California.
A photographic field trip to classic subduction-related rocks across northern California.
Algodones Dunes
Pictures of California's largest dunefield, east of the Salton Sea.
Pictures of California's largest dunefield, east of the Salton Sea.
Cascade Range Picture Gallery
This volcanic province stretches into Oregon and Washington too.
This volcanic province stretches into Oregon and Washington too.
Central Coast Range
A day trip from King City to Panoche highlights a hidden part of the state.
A day trip from King City to Panoche highlights a hidden part of the state.
Desert Geology of California
A select gallery of photos from the Mojave Desert and surrounding region.
A select gallery of photos from the Mojave Desert and surrounding region.
Geology of the Golden Gate
A thorough guide from the Golden Gate National Recreation Area.
A thorough guide from the Golden Gate National Recreation Area.
Great Valley Geology
A dozen shots from the Central Valley and its foothills.
A dozen shots from the Central Valley and its foothills.
Hayward Fault Home Page
The Hayward fault in the San Francisco Bay area is America's most expensive earthquake threat.
The Hayward fault in the San Francisco Bay area is America's most expensive earthquake threat.
Hayward Fault Gallery
Signs and symptoms of movement along the nation's most threatening fault.
Signs and symptoms of movement along the nation's most threatening fault.
Joshua Tree National Park
A tour of the world-class land and vegetation in this desert park at the eastern end of the Transverse Ranges.
A tour of the world-class land and vegetation in this desert park at the eastern end of the Transverse Ranges.
Kelso Dunes, Mojave Desert, California
The Kelso Dunes and adjoining Devil's Playground are the largest dune field in the Mojave Desert.
The Kelso Dunes and adjoining Devil's Playground are the largest dune field in the Mojave Desert.
Laguna Beach Geology
Laguna Beach is a showcase of Southern California rocks, tectonics and coastal dynamics.
Laguna Beach is a showcase of Southern California rocks, tectonics and coastal dynamics.
Point Lobos and Point Reyes
Rocks at these two places, now 180 km apart, were once one body. Their separation serves to measure motion on the San Andreas fault system.
Rocks at these two places, now 180 km apart, were once one body. Their separation serves to measure motion on the San Andreas fault system.
Los Angeles: Liquefaction/Landslide Risk Maps
The California Geological Survey serves maps for cities from Ventura to Lancaster to San Clemente.
The California Geological Survey serves maps for cities from Ventura to Lancaster to San Clemente.
Oakland Geology
Some of the surprising variety found in my home town.
Some of the surprising variety found in my home town.
Putah and Cache
This online book on the Coast Range west of Sacramento has excellent geology sections by Eldredge Moores.
This online book on the Coast Range west of Sacramento has excellent geology sections by Eldredge Moores.
Red Rock Canyon State Park, California
This iconic locality has starred in many movies, Western and otherwise.
This iconic locality has starred in many movies, Western and otherwise.
Salton Sea Seep Field
Photos of wild geothermal activity in southern California.
Photos of wild geothermal activity in southern California.
San Francisco Bay Area
Geological photo tour of the San Francisco Bay area.
Geological photo tour of the San Francisco Bay area.
San Francisco Geology
A photo tour of San Francisco's geologic attractions.
A photo tour of San Francisco's geologic attractions.
San Francisco vs. Manhattan
Comparing and contrasting San Francisco and New York.
Comparing and contrasting San Francisco and New York.
Shell Beach, Sonoma County
Shell Beach, north of San Francisco, is a remarkable showplace of the subduction-related rocks of the Franciscan Complex.
Shell Beach, north of San Francisco, is a remarkable showplace of the subduction-related rocks of the Franciscan Complex.
Stinson Beach Geology
Pictures of this interesting beach and town near San Francisco.
Pictures of this interesting beach and town near San Francisco.
Sutter Buttes Geology
Pictures, maps and notes from the Sutter Buttes of central California, "the world's smallest mountain range."
Pictures, maps and notes from the Sutter Buttes of central California, "the world's smallest mountain range."
Trona: Tufa Towers of Trona Pinnacles
America's largest collection of tufa towers is in the Mojave Desert near the town of Trona.
America's largest collection of tufa towers is in the Mojave Desert near the town of Trona.
Western Transverse Ranges
The rugged mountains north of Santa Barbara are pierced by state route 33, between Ojai and Cuyama.
The rugged mountains north of Santa Barbara are pierced by state route 33, between Ojai and Cuyama.
Wine Country Geology
A group of geologists explores the mystery of terroir in the field.
A group of geologists explores the mystery of terroir in the field.
Yosemite Valley Roadside Geology
Garry Hayes of Modesto Junior College made this deeply detailed tour with nice big photos.
Garry Hayes of Modesto Junior College made this deeply detailed tour with nice big photos.
California Quarries
The deepest resource in the universe on the California stone industry.
The deepest resource in the universe on the California stone industry.
California Campgrounds
About.com's David Sweet guides you to the best outdoor places to stay.
About.com's David Sweet guides you to the best outdoor places to stay.
California Maps
About.com's Matt Rosenberg helps get you oriented.
About.com's Matt Rosenberg helps get you oriented.