Eastern California is the perhaps the best place in the country to learn geology. The deserts beyond the Sierra Nevada host glacial features, volcanoes and rivers. Beautiful stratigraphic layers are ...

FOLLOWING the earlier studies of the igneous and metamorphic rocks of the mining districts of California, there has more recently been an immense amount of detailed and accurate work devoted to ...

As sea otters recolonize a California estuary, they are restoring its degraded geology by keeping populations of overgrazing marsh crabs in check, a new study shows. The crabs' appetite for plant ...

California’s state geologist has concluded that an active earthquake fault is underneath a massive proposed skyscraper project in Hollywood, setting the stage for a huge battle at City Hall over ...

President Obama’s declaration that a large swath of Coast Range land will become the Berryessa Snow Mountain National Monument pleased a lot of people, including lovers of rocks. The park displays ...

A tectonic plate that disappeared under North America millions of years ago still peeks out in central California and Mexico, new research finds. The Farallon oceanic plate was once nestled between ...