@misc{indiciae505feb77cd24,
  title = {Precipitation variability of the Grand Canyon region, 1893 through 2009, and its implications for studying effects of gullying of Holocene terraces and associated archeological sites in Grand Canyon, Arizona},
  author = {Richard Hereford and Glenn E. Bennett and Helen C. Fairley},
  year = {2014},
  doi = {10.3133/ofr20141006},
  url = {https://pubs.usgs.gov/publication/ofr20141006},
  note = {Source identifier: ofr20141006}
}