(Illustration by Joe Dworetzky/Bay City News)

A geological feature of continental significance (the Bartlett Springs Fault, or BSF) runs through Lake Pillsbury approximately 5,000 feet east of Scott Dam, part of PG&E’s Potter Valley Project. The BSF is the easternmost fault in the San Andreas Fault Zone (SAFZ), a major transform-fault boundary between the North American and Pacific tectonic plates.

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Bob Schneider has a Bachelor of Science in Geology from University of California, Davis.

Chad Roberts has a Ph.D. in Ecology from University of California, Davis.