@misc{indiciae6b810e054671,
  title = {Preliminary geologic map of part of the Pahlone Peak Quadrangle, Gunnison, Saguache, and Chaffee counties, Colorado},
  author = {Jerry Chipman Olson},
  year = {1977},
  doi = {10.3133/ofr77325},
  url = {https://pubs.usgs.gov/publication/ofr77325},
  note = {Source identifier: ofr77325}
}