@misc{indiciae0c2eee2c4842,
  title = {Photogeologic map of the Mt. Pennell-13 quadrangle, Garfield and Kane Counties, Utah},
  author = {J.S. Detterman},
  year = {1955},
  doi = {10.3133/i49},
  url = {https://pubs.usgs.gov/publication/i49},
  note = {Source identifier: i49}
}