@misc{indiciae643b7a2b4217,
  title = {Coal resource occurrence and coal development potential maps of the Open A Ranch quadrangle, Campbell County, Wyoming},
  author = {IntraSearch Inc.},
  year = {1979},
  doi = {10.3133/ofr7970},
  url = {https://pubs.usgs.gov/publication/ofr7970},
  note = {Source identifier: ofr7970}
}