@misc{indiciaefad12a8be5be,
  title = {Mineral resources of the Dolores River Canyon Wilderness Study Area, Montrose and San Miguel counties, Colorado},
  author = {Carol N. Gerlitz and H. N. Barton and D. M. Kulik and Charles M. Martin},
  year = {1988},
  doi = {10.3133/b1715c},
  url = {https://pubs.usgs.gov/publication/b1715C},
  note = {Source identifier: b1715C}
}