@misc{indiciaeabbe0643e9db,
  title = {Coal resource occurrence and coal development potential maps of the Half Moon Hill Quadrangle, Big Horn County, Montana},
  author = {Colorado School of Mines Research Institute},
  year = {1979},
  doi = {10.3133/ofr79648},
  url = {https://pubs.usgs.gov/publication/ofr79648},
  note = {Source identifier: ofr79648}
}