@misc{indiciae21a50529c8ed,
  title = {Photogeologic map, Clay Hills-11 quadrangle, San Juan County, Utah},
  author = {C. H. Marshall},
  year = {1954},
  doi = {10.3133/tem840},
  url = {https://pubs.usgs.gov/publication/tem840},
  note = {Source identifier: tem840}
}