@misc{indiciae65af841fd432,
  title = {Sixth Annual Report of the United States Geological Survey of the Territories, embracing portions of Montana, Idaho, Wyoming, and Utah, being a report of progress of the explorations for the year 1872},
  author = {Ferdinand Vandeveer Hayden},
  year = {1873},
  doi = {10.3133/70038930},
  url = {https://pubs.usgs.gov/publication/70038930},
  note = {Source identifier: 70038930}
}