This guidebook describes stops at the San Andreas Fault where fault scarps created by the 1857 Ft. Tejon earthquake are inspected. Taking Highway 166 into the Cuyama Valley stops are described at oil fields and fossil localities on the way to Santa Maria. From Santa Maria this guidee discusses the geology and natural history from Highway 1 to Lompoc and the diatomaceous earth mine operated by Celite Corporation. Next stop is La Purisima Mission were we learn about the early colonization of California. Then final stop is at Point Sal were unusual ophiolite rocks are studies and plate tectonic theory is explained.