@misc{indiciaea8dc9344d686,
  title = {Geologic map and digital database of the San Bernardino Wash 7.5 minute quadrangle, Riverside County, California},
  author = {Robert E. Powell and Pamela M. Cossette},
  year = {2002},
  doi = {10.3133/ofr02498},
  url = {https://pubs.usgs.gov/publication/ofr02498},
  note = {Source identifier: ofr02498}
}