@misc{indiciaecba6b432cb9f,
  title = {Coal resource occurrence and coal development potential maps of the Garfield Peak Quadrangle, Rosebud County, Montana},
  author = {Colorado School of Mines Research Institute},
  year = {1979},
  doi = {10.3133/ofr7910},
  url = {https://pubs.usgs.gov/publication/ofr7910},
  note = {Source identifier: ofr7910}
}