@misc{indiciae6500bce00463,
  title = {The history of a portion of Yampa River, Colorado, and its possible bearing on that of Green River},
  author = {E.T. Hancock},
  year = {1915},
  doi = {10.3133/pp90k},
  url = {https://pubs.usgs.gov/publication/pp90K},
  note = {Source identifier: pp90K}
}