@misc{indiciaed9216b64a9ec,
  title = {Fourth Annual report of the United States Geological Survey to the Secretary of the Interior, 1882-1883},
  author = {J. W. Powell},
  year = {1884},
  doi = {10.3133/ar4},
  url = {https://pubs.usgs.gov/publication/ar4},
  note = {Source identifier: ar4}
}