@misc{indiciae6bcb5a31fb4f,
  title = {Preliminary geologic map of east half of Vernal 1° by 2° quadrangle, Colorado},
  author = {Ogden Tweto},
  year = {1975},
  doi = {10.3133/ofr75588},
  url = {https://pubs.usgs.gov/publication/ofr75588},
  note = {Source identifier: ofr75588}
}