@misc{indiciae026ea9f13130,
  title = {Geologic map of the Red Pinnacle Quadrangle, Garfield County, Colorado},
  author = {J. R. Donnell},
  year = {1992},
  doi = {10.3133/mf2202},
  url = {https://pubs.usgs.gov/publication/mf2202},
  note = {Source identifier: mf2202}
}