@misc{indiciaee207c4cc1482,
  title = {Coal resource occurrence and coal development potential maps of the Colstrip SE Quadrangle, Rosebud County, Montana},
  author = {Colorado School of Mines Research Institute},
  year = {1979},
  doi = {10.3133/ofr796},
  url = {https://pubs.usgs.gov/publication/ofr796},
  note = {Source identifier: ofr796}
}