@misc{indiciae9d987e2f4337,
  title = {Geologic map of the Pingree Park quadrangle, Larimer County, Colorado},
  author = {William D. Nesse and William A. Braddock},
  year = {1989},
  doi = {10.3133/gq1622},
  url = {https://pubs.usgs.gov/publication/gq1622},
  note = {Source identifier: gq1622}
}