@misc{indiciae2fdcc3b00dea,
  title = {Geologic map of the Ward quadrangle, Boulder County, Colorado},
  author = {Dolores J. Gable and Richard F. Madole},
  year = {1976},
  doi = {10.3133/gq1277},
  url = {https://pubs.usgs.gov/publication/gq1277},
  note = {Source identifier: gq1277}
}