@misc{indiciaeac271e5604a5,
  title = {Geologic map of the Hawxhurst Creek quadrangle, Garfield and Mesa counties, Colorado},
  author = {John R. Donnell and Warren E. Yeend},
  year = {1968},
  doi = {10.3133/ofr6878},
  url = {https://pubs.usgs.gov/publication/ofr6878},
  note = {Source identifier: ofr6878}
}