@misc{indiciae3649a7c1f69f, title = {Preliminary Geologic Map of the Sage 7.5' Quadrangle, Riverside County, California}, author = {Doug M. Morton and M. P. Kennedy}, year = {2005}, doi = {10.3133/ofr20051285}, url = {https://pubs.usgs.gov/publication/ofr20051285}, note = {Source identifier: ofr20051285} }