@misc{indiciaeb1b646729832,
  title = {Photogeologic map of the Elk Ridge-16 quadrangle, San Juan County, Utah},
  author = {C. F. Miller},
  year = {1955},
  doi = {10.3133/i63},
  url = {https://pubs.usgs.gov/publication/i63},
  note = {Source identifier: i63}
}