This report, done as course work for Geology 198 at San Diego State College, presents the general geology of a 14 square mile area north of the town of San Felipe, Baj a California Mexico, approximately 31 °2' north latitude and 115° 10' west longitude. The rocks of the area are complexly folded Mesozoic metaquartzites, limestones, and slates; cretaceous quartz, orthoclase diorites which have intruded the area as several distinct bodies, and Plio-Plastocene shallow-water marine sedimentary rocks. The sedimentary sequence has been thermally metamorphosed by the plutons to the epizonal or low me so zonal grade.
