@misc{indiciae9d43996b80ef,
  title = {Mineral resources of the United States, 1885},
  author = {U.S. Geological Survey},
  year = {1886},
  doi = {10.3133/70175760},
  url = {https://pubs.usgs.gov/publication/70175760},
  note = {Source identifier: 70175760}
}