@misc{indiciae34621f3cdeb6,
  title = {Preliminary geologic map of the Skull Springs quadrangle, Malheur County, Oregon},
  author = {J. G. Evans and G. B. Binger},
  year = {1999},
  doi = {10.3133/ofr99331},
  url = {https://pubs.usgs.gov/publication/ofr99331},
  note = {Source identifier: ofr99331}
}