@misc{indiciae6e1898eebd81,
  title = {Topographic map of the Ninemile Draw area, Colorado River, Glen Canyon National Recreation Area, Arizona},
  author = {Richard Hereford},
  year = {1996},
  doi = {10.3133/ofr97253},
  url = {https://pubs.usgs.gov/publication/ofr97253},
  note = {Source identifier: ofr97253}
}