@misc{indiciae3668189f6fdc, title = {Preliminary geologic map of the Castle Rock Ridge Quadrangle, Santa Cruz and Santa Clara counties, California}, author = {Earl E. Brabb and T. W. Dibblee}, year = {1979}, doi = {10.3133/ofr79659}, url = {https://pubs.usgs.gov/publication/ofr79659}, note = {Source identifier: ofr79659} }