@misc{indiciaeb8fa24f96a36,
  title = {Geologic map of the Big Narrows quadrangle, Larimer County, Colorado},
  author = {Jeffrey T. Abbott},
  year = {1976},
  doi = {10.3133/gq1323},
  url = {https://pubs.usgs.gov/publication/gq1323},
  note = {Source identifier: gq1323}
}