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Tim Hastings wrote to us wondering about “many large round, almost ‘dinosaur-egg’ like rocks dotting the muddy sands” when he was hiking the Estero Trail. Tim’s guess is that the soft rock is susceptible to erosive shaping during the rise and … Read more
Now that it’s officially on the national park circuit, Pinnacles may be seeing more visitors as diehard national park goers add the geological wonder to their bucket lists.
Should we worry about asbestos in serpentine rock? Yes, a bit. In California, we have North America’s largest exposures. It’s even our official state rock.
The Mavericks surf contest has been called for Sunday, January 20. As we wait for big kahunas to roll in, we ask why Half Moon Bay gets the legendary waves that become the surfer’s delight.
And suddenly it was gone. The iconic rock arch at Tennessee Beach in Marin unexpectedly gave way, changing the view forever.
Put yourself in just the right spot at midnight on New Year’s Eve and you may be able to see the second brightest star in the sky that’s normally invisible in much of the Bay Area — Canopus.
The Bay Area’s No. 1 mercury polluter, the Lehigh cement plant in Cupertino, is cleaning its business after the region’s air district passed the strongest air rules in the nation.
The state is considering new regs on fracking, which could create a new oil boom in California, in a swathe stretching form the Bay Area to Los Angeles.
Take a four-mile stroll with Jules Evens through a landscaped shaped by enormous geological forces — and full of wildlife, native plants, and a more than a few puzzles.
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Workers digging the new fourth bore of the Caldecott Tunnel are getting a once-in-a-lifetime view of one of the defining features of the East Bay: the range of hills that runs from San Pablo Bay south to Fremont. By visiting just a few accessible sites aboveground, you can find clues that tell the story of how these hills rose from their humble origins as deep ocean sediments and volcanic flows to the iconic fault-riddled hillsides of today.
