@misc{indiciaea5deaf37ff2b,
  title = {Geologic map of the Crystal Mountain quadrangle, Larimer County, Colorado},
  author = {William A. Braddock and Lester J. LaFountain},
  year = {1988},
  doi = {10.3133/gq1623},
  url = {https://pubs.usgs.gov/publication/gq1623},
  note = {Source identifier: gq1623}
}