@misc{indiciae71e2671f2bac, title = {Preliminary geologic map of the Mint Canyon 7.5' quadrangle, southern California: A digital database}, author = {R.F. Yerkes}, year = {1997}, doi = {10.3133/ofr97164}, url = {https://pubs.usgs.gov/publication/ofr97164}, note = {Source identifier: ofr97164} }