@misc{indiciae65988c65018a,
  title = {Geologic map of the Indian Hills quadrangle, Jefferson County, Colorado},
  author = {Bruce Bryant and Glenn R. Scott and Robert D. Miller},
  year = {1971},
  doi = {10.3133/ofr7159},
  url = {https://pubs.usgs.gov/publication/ofr7159},
  note = {Source identifier: ofr7159}
}