@misc{indiciaeded281b19a6f,
  title = {Geologic map of the Elkol quadrangle, southwestern Wyoming},
  author = {John W. M’Gonigle},
  year = {1992},
  doi = {10.3133/coal141},
  url = {https://pubs.usgs.gov/publication/coal141},
  note = {Source identifier: coal141}
}