@misc{indiciae16febbda9c44,
  title = {Geologic strip map of parts of Bar X Wash, Bryson Canyon, Jim Canyon, and San Arroyo Ridge quadrangles, Utah and Colorado, showing coal zones and adjacent rocks},
  author = {James Louis Gualtieri},
  year = {1980},
  doi = {10.3133/ofr801228},
  url = {https://pubs.usgs.gov/publication/ofr801228},
  note = {Source identifier: ofr801228}
}