@misc{indiciae992e52a3f0b7,
  title = {Preliminary geologic map of the Palen Pass Quadrangle, Riverside County, California},
  author = {Paul Stone and Michael M. Kelly},
  year = {1988},
  doi = {10.3133/ofr88503},
  url = {https://pubs.usgs.gov/publication/ofr88503},
  note = {Source identifier: ofr88503}
}