@misc{indiciae9967ca2e4739,
  title = {Geologic map of the Buckhorn Lakes quadrangle, Gunnison, Montrose, and Ouray Counties, Colorado},
  author = {R. G. Dickinson},
  year = {1987},
  doi = {10.3133/gq1642},
  url = {https://pubs.usgs.gov/publication/gq1642},
  note = {Source identifier: gq1642}
}