@misc{indiciae70712bbd2c48,
  title = {Geologic map of the Highland Peak quadrangle, Pitkin County, Colorado},
  author = {Bruce Bryant},
  year = {1972},
  doi = {10.3133/ofr7045},
  url = {https://pubs.usgs.gov/publication/ofr7045},
  note = {Source identifier: ofr7045}
}