@misc{indiciae60b1f5a4c11d,
  title = {Geologic map of the Rulison Quadrangle, Garfield County, Colorado},
  author = {W. E. Yeend and J. R. Donnell and M. C. Smith},
  year = {1988},
  doi = {10.3133/mf2060},
  url = {https://pubs.usgs.gov/publication/mf2060},
  note = {Source identifier: mf2060}
}