@misc{indiciaef4284df9a736,
  title = {Geologic and geochemical maps of the West Needle Wilderness Study Area, San Juan and La Plata counties, Colorado},
  author = {R. E. Van Loenen},
  year = {1985},
  doi = {10.3133/mf1632b},
  url = {https://pubs.usgs.gov/publication/mf1632B},
  note = {Source identifier: mf1632B}
}