@misc{indiciae8c6a32b7a504,
  title = {Photogeologic map of the Clay Hills-10 quadrangle, San Juan County, Utah},
  author = {C. H. Marshall},
  year = {1955},
  doi = {10.3133/i78},
  url = {https://pubs.usgs.gov/publication/i78},
  note = {Source identifier: i78}
}