@misc{indiciae37ff7fcb04a2,
  title = {Geologic map of the Gold Hill quadrangle, Boulder County, Colorado},
  author = {Dolores J. Gable},
  year = {1980},
  doi = {10.3133/gq1525},
  url = {https://pubs.usgs.gov/publication/gq1525},
  note = {Source identifier: gq1525}
}