@misc{indiciae304080223802,
  title = {Photogeologic map of the Navajo Mountain-1 quadrangle, San Juan County, Utah},
  author = {A. B. Olson},
  year = {1956},
  doi = {10.3133/i229},
  url = {https://pubs.usgs.gov/publication/i229},
  note = {Source identifier: i229}
}