@misc{indiciaec584445bf5c9,
  title = {Rocky Mountains},
  author = {Richard F. Madole and W.C. Bradley and D.S. Loewenherz and D.F. Ritter and N.W. Rutter and C.E. Thorn},
  year = {1987},
  doi = {10.1130/dnag-cent-v2.211},
  url = {https://pubs.usgs.gov/publication/70207970},
  note = {Source identifier: 70207970}
}