@misc{indiciae98a24f39418d,
  title = {Bald Mountain gold mining region, northern Black Hills, South Dakota},
  author = {James Jennings Norton},
  year = {1983},
  doi = {10.3133/ofr83791},
  url = {https://pubs.usgs.gov/publication/ofr83791},
  note = {Source identifier: ofr83791}
}