@misc{indiciaec2f91fed3aab,
  title = {Map showing tectonic features of late Cenozoic origin in Colorado},
  author = {Steven M. Colman},
  year = {1985},
  doi = {10.3133/i1566},
  url = {https://pubs.usgs.gov/publication/i1566},
  note = {Source identifier: i1566}
}