@misc{indiciaef86a0e30da86,
  title = {Reconnaissance drilling during 1977 in the Yampa coal field, Moffat and Routt counties, Colorado},
  author = {Michael E. Brownfield},
  year = {1978},
  doi = {10.3133/ofr78365},
  url = {https://pubs.usgs.gov/publication/ofr78365},
  note = {Source identifier: ofr78365}
}