San Francisco State University student investigating the rainbow-colored sands of Rodeo Beach in the Marin Headlands
Kirk Wrench
Peruse these files to gain more knowledge and deepen your understanding of the common rocks of the Franciscan Complex. Rock information cards, rock FAQs, and a Franciscan Complex glossary all provide more details about each rock to help you think about the ancient ocean floor you walk and live upon when you are east of the San Andreas Fault in the Bay Area.