@misc{indiciae45cb9f82ae6e,
  title = {Photogeologic map of the Navajo Mountain 13 quadrangle, Kane and San Juan Counties, Utah},
  author = {R.J. Hackman},
  year = {1953},
  doi = {10.3133/ofr53101},
  url = {https://pubs.usgs.gov/publication/ofr53101},
  note = {Source identifier: ofr53101}
}