@misc{indiciaec47ea33416de,
  title = {Changes in sand storage in the Colorado River in Grand Canyon National Park from July 2017 through June 2020},
  author = {Ronald E. Griffiths and David J. Topping and Joel A. Unema},
  year = {2024},
  doi = {10.3133/ofr20231093},
  url = {https://pubs.usgs.gov/publication/ofr20231093},
  note = {Source identifier: ofr20231093}
}