@misc{indiciae7a8d2f8f4351,
  title = {Map showing outcrops of pre-Quaternary ash-flow tuffs, Basin and Range Province, Southern California},
  author = {J. E. Jenness and D. A. Lopez},
  year = {1984},
  doi = {10.3133/wri834116f},
  url = {https://pubs.usgs.gov/publication/wri834116F},
  note = {Source identifier: wri834116F}
}