@misc{indiciae7aea88cab11f,
  title = {Photogeologic map of the Clay Hills-9 quadrangle, San Juan County, Utah},
  author = {P. P. Orkild},
  year = {1955},
  doi = {10.3133/i79},
  url = {https://pubs.usgs.gov/publication/i79},
  note = {Source identifier: i79}
}