@misc{indiciaed043cb604a98,
  title = {Preliminary geologic map of the Indian Hills quadrangle, Jefferson County, Colorado},
  author = {G. R. Scott},
  year = {1961},
  doi = {10.3133/i333},
  url = {https://pubs.usgs.gov/publication/i333},
  note = {Source identifier: i333}
}