@misc{indiciae481da42230a4,
  title = {Reconnaissance geologic map of the Pine Quadrangle, Jefferson County, Colorado},
  author = {Bruce Bryant},
  year = {1974},
  doi = {10.3133/mf598},
  url = {https://pubs.usgs.gov/publication/mf598},
  note = {Source identifier: mf598}
}