@misc{indiciae5de5b1e21ef2,
  title = {Geologic map and coal sections of the Round Bottom quadrangle, Moffat County, Colorado},
  author = {Edward A. Johnson},
  year = {1987},
  doi = {10.3133/coal108},
  url = {https://pubs.usgs.gov/publication/coal108},
  note = {Source identifier: coal108}
}