The San Francisco Bay Area's crazy quilt-pattern of rock formations -- shaped by earthquakes -- are the key to understanding the region's landscapes. From ice-age dune sand in San Francisco to recently subsided land in the Santa Clara Valley or the veritable maze of earthquake faults in the East Bay, the geology is a fascinating blueprint of the region's natural history.

Bay view from China Camp State Park (photo by Kevin Collins)

Why Bay Nature?

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Publisher David Loeb had his Bay Nature epiphany while hiking in China Camp State Park. That’s when he conceived of the idea to start a magazine about the natural wonders of the San Francisco Bay Area. Recently David gave a … Read more

Behind the Fracking Boom: Unearthing the Secrets of the Monterey Shale

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But the pressure to exploit these resources isn’t going away anytime soon either, nor is the debate over the wisdom of doing so. As we weigh the pros and cons, a missing piece of the conversation is the land itself: What is the Monterey Formation? What is it made of and how did it get here? And what kind of habitats, plants, and animals live atop it?

Sunset Beach, creative commons photo by Caryn Becker

Dinosaur eggs on Point Reyes Estero Trail?

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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