@misc{indiciaeeee240815531,
  title = {Description of map units and discussion to accompany map showing surficial geology and geomorphology of the Palisades Creek Archeologic area, Grand Canyon National Park, Arizona},
  author = {Richard Hereford},
  year = {1993},
  doi = {10.3133/ofr93553},
  url = {https://pubs.usgs.gov/publication/ofr93553},
  note = {Source identifier: ofr93553}
}