@misc{indiciae06a023532a7d,
  title = {River basins of the United States: the Colorado},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1987},
  doi = {10.3133/70039371},
  url = {https://pubs.usgs.gov/publication/70039371},
  note = {Source identifier: 70039371}
}