@misc{indiciae6133a239006c,
  title = {Topographic change detection at select archeological sites in Grand Canyon National Park, Arizona, 2007-2010},
  author = {Brian D. Collins and Skye C. Corbett and Helen C. Fairley and Diane L. Minasian and Robert Kayen and Timothy P. Dealy and David R. Bedford},
  year = {2012},
  doi = {10.3133/sir20125133},
  url = {https://pubs.usgs.gov/publication/sir20125133},
  note = {Source identifier: sir20125133}
}