@misc{indiciaec77668be4bd8,
  title = {Coal resource occurrence and coal development potential maps of the Bar V Ranch NE Quadrangle, Big Horn County, Montana},
  author = {Colorado School of Mines Research Institute},
  year = {1979},
  doi = {10.3133/ofr79644},
  url = {https://pubs.usgs.gov/publication/ofr79644},
  note = {Source identifier: ofr79644}
}