@misc{indiciae4390524e8597,
  title = {Quaternary geology of the Grand and Battlement Mesas area, Colorado},
  author = {Warren E. Yeend},
  year = {1969},
  doi = {10.3133/pp617},
  url = {https://pubs.usgs.gov/publication/pp617},
  note = {Source identifier: pp617}
}