@misc{indiciaef056888b658d,
  title = {Uplift of the Bighorn Mountains, Wyoming and Montana; a sandstone provenance study},
  author = {C.E. Whipkey and V.V. Cavaroc and R. M. Flores},
  year = {1991},
  doi = {10.3133/b1917d},
  url = {https://pubs.usgs.gov/publication/b1917D},
  note = {Source identifier: b1917D}
}