@misc{indiciae9657d6e13386,
  title = {Photogeologic map of the Elk Ridge-11 quadrangle, San Juan County, Utah},
  author = {J. C. Reed},
  year = {1955},
  doi = {10.3133/i56},
  url = {https://pubs.usgs.gov/publication/i56},
  note = {Source identifier: i56}
}