@misc{indiciaece35246423be,
  title = {Report of exploration in 1873 of the Colorado of the West and its tributaries},
  author = {John Wesley Powell},
  year = {1874},
  doi = {10.3133/70039911},
  url = {https://pubs.usgs.gov/publication/70039911},
  note = {Source identifier: 70039911}
}