@misc{indiciae44c70f0af6f5,
  title = {Preliminary geologic map of the Cutoff Gulch Quadrangle, Rio Blanco and Garfield counties, Colorado},
  author = {W. J. Hail},
  year = {1975},
  doi = {10.3133/mf691},
  url = {https://pubs.usgs.gov/publication/mf691},
  note = {Source identifier: mf691}
}