@misc{indiciae99b20eb3797c,
  title = {Resurvey of the Marble Canyon and Bridge Canyon dam sites in Grand Canyon National Park—Changes in sediment storage and evidence supporting the occurrence of bedrock incision through the mid-20th century},
  author = {David J. Topping and Joseph E. Hazel and Matthew A. Kaplinski and Paul E. Grams},
  year = {2026},
  doi = {10.3133/pp1909},
  url = {https://pubs.usgs.gov/publication/pp1909},
  note = {Source identifier: pp1909}
}