@misc{indiciaedea0e15db985,
  title = {Geologic map and cross sections of the Carbondale 30' x 60' quadrangle, west-central Colorado},
  author = {Margaret S. Ellis and Val L. Freeman},
  year = {1984},
  doi = {10.3133/coal97a},
  url = {https://pubs.usgs.gov/publication/coal97A},
  note = {Source identifier: coal97A}
}