@misc{indiciae498ca8157a2a,
  title = {Coal resource occurrence and coal development potential maps of the Arvada NE Quadrangle, Sheridan and Campbell counties, Wyoming},
  author = {IntraSearch Inc.},
  year = {1979},
  doi = {10.3133/ofr79167},
  url = {https://pubs.usgs.gov/publication/ofr79167},
  note = {Source identifier: ofr79167}
}