@misc{indiciae03d77a38b2de,
  title = {Preliminary geologic map of part of the northern Park Range, Colorado},
  author = {George L. Snyder},
  year = {1966},
  doi = {10.3133/ofr66126},
  url = {https://pubs.usgs.gov/publication/ofr66126},
  note = {Source identifier: ofr66126}
}