@misc{indiciaeb6ed99402ec9,
  title = {Coal resource occurrence and coal development potential maps of the Box Elder Draw quadrangle, Sheridan County, Wyoming, and Big Horn and Powder River Counties, Montana},
  author = {IntraSearch Inc.},
  year = {1980},
  doi = {10.3133/ofr79162},
  url = {https://pubs.usgs.gov/publication/ofr79162},
  note = {Source identifier: ofr79162}
}