@misc{indiciae422c91c744f2,
  title = {Photogeologic map of Bluff 14 quadrangle, San Juan County, Utah},
  author = {Richard G. Ray},
  year = {1952},
  doi = {10.3133/ofr52121},
  url = {https://pubs.usgs.gov/publication/ofr52121},
  note = {Source identifier: ofr52121}
}