@misc{indiciae19ff8d5cf066,
  title = {Photogeologic map, Clay Hills-8 quadrangle, San Juan County, Utah},
  author = {Charles H. Marshall},
  year = {1955},
  doi = {10.3133/ofr55108},
  url = {https://pubs.usgs.gov/publication/ofr55108},
  note = {Source identifier: ofr55108}
}