@misc{indiciae069e557c7801,
  title = {Preliminary geologic map of the Elsinore 7.5' quadrangle, Riverside County, California},
  author = {Douglas M. Morton and F. Harold Weber and Rachel M. Alvarez and Diane Burns},
  year = {2003},
  doi = {10.3133/ofr03281},
  url = {https://pubs.usgs.gov/publication/ofr03281},
  note = {Source identifier: ofr03281}
}