@misc{indiciae1febd773bb20,
  title = {Reconnaissance drilling in the Yampa coal field, Hayden-Williams Fork Mountains area (Yampa No. 3), Moffat and Routt counties, Colorado, during 1976},
  author = {Gary Prost},
  year = {1977},
  doi = {10.3133/ofr77155},
  url = {https://pubs.usgs.gov/publication/ofr77155},
  note = {Source identifier: ofr77155}
}