@misc{indiciae6f7695201c98,
  title = {Photogeologic map of the Elk Ridge-6 quadrangle, San Juan County, Utah},
  author = {J.S. Detterman and J. C. Reed},
  year = {1955},
  doi = {10.3133/i98},
  url = {https://pubs.usgs.gov/publication/i98},
  note = {Source identifier: i98}
}