@misc{indiciae22d4ec05c28d,
  title = {Field measures of gravel quality in the South Platte River north of Denver, Colorado: A pilot study},
  author = {David A. Lindsey and John F. Shary},
  year = {1997},
  doi = {10.3133/ofr97451},
  url = {https://pubs.usgs.gov/publication/ofr97451},
  note = {Source identifier: ofr97451}
}