@misc{indiciaebf918e7c5ed2,
  title = {Photogeologic map of Elk Ridge-4 quadrangle, San Juan County, Utah},
  author = {J.S. Detterman and J.N. Platt},
  year = {1956},
  doi = {10.3133/i151},
  url = {https://pubs.usgs.gov/publication/i151},
  note = {Source identifier: i151}
}