@misc{indiciae5b29acb414c2,
  title = {Geologic map of the Canyon Village quadrangle, Yellowstone National Park, Wyoming},
  author = {Robert L. Christiansen and H. Richard Blank},
  year = {1975},
  doi = {10.3133/gq1192},
  url = {https://pubs.usgs.gov/publication/gq1192},
  note = {Source identifier: gq1192}
}