@misc{indiciae836f6a25d789,
  title = {Preliminary geologic map of the west half of the Thirteenmile Creek Quadrangle, Rio Blanco and Garfield counties, Colorado},
  author = {R. B. O'Sullivan and M. C. Smith},
  year = {1985},
  doi = {10.3133/mf1789},
  url = {https://pubs.usgs.gov/publication/mf1789},
  note = {Source identifier: mf1789}
}