@misc{indiciae14509e85eef0,
  title = {Preliminary geologic map of Elk Ridge 2 NW quadrangle, San Juan County, Utah},
  author = {Richard Q. Lewis and Russell H. Campbell},
  year = {1957},
  doi = {10.3133/tem921},
  url = {https://pubs.usgs.gov/publication/tem921},
  note = {Source identifier: tem921}
}