@misc{indiciae732eb4f8171e,
  title = {Geologic map of the Snowmass Mountain quadrangle, Pitkin and Gunnison Counties, Colorado},
  author = {Felix E. Mutschler},
  year = {1970},
  doi = {10.3133/gq853},
  url = {https://pubs.usgs.gov/publication/gq853},
  note = {Source identifier: gq853}
}