@misc{indiciae384ee3f6e5a2,
  title = {Coal resource occurrence and coal development potential maps of the Kirby Quadrangle, Big Horn County, Montana},
  author = {Colorado School of Mines Research Institute},
  year = {1979},
  doi = {10.3133/ofr79650},
  url = {https://pubs.usgs.gov/publication/ofr79650},
  note = {Source identifier: ofr79650}
}