@misc{indiciae0efc8c5e0e00,
  title = {Geologic map of the Wilbur Springs quadrangle, California},
  author = {Ernest I. Rich},
  year = {1969},
  doi = {10.3133/ofr69221},
  url = {https://pubs.usgs.gov/publication/ofr69221},
  note = {Source identifier: ofr69221}
}