@misc{indiciae0801ad8c4937,
  title = {Dating prehistoric tributary debris fans, Colorado River, Grand Canyon National Park, Arizona with implications for channel evolution and river navigability},
  author = {Richard Hereford},
  year = {1997},
  doi = {10.3133/ofr97167},
  url = {https://pubs.usgs.gov/publication/ofr97167},
  note = {Source identifier: ofr97167}
}