@misc{indiciae83cd645f9407,
  title = {Elk Ridge 4 NW quadrangle, San Juan County, Utah},
  author = {R.Q. Lewis and R. H. Campbell},
  year = {1959},
  doi = {10.3133/mf199},
  url = {https://pubs.usgs.gov/publication/mf199},
  note = {Source identifier: mf199}
}