@misc{indiciae319f27ca9ea9,
  title = {Photogeologic map, Mount Pennell 14 quadrangle, Garfield and Kane Counties, Utah},
  author = {R.J. Hackman},
  year = {1953},
  doi = {10.3133/ofr5399},
  url = {https://pubs.usgs.gov/publication/ofr5399},
  note = {Source identifier: ofr5399}
}