@misc{indiciaee66dd4635e8e,
  title = {Radioactive black sand placer deposits of the Challis 1° x 2° quadrangle, Idaho},
  author = {T. H. Kiilsgaard and W. E. Hall},
  year = {1986},
  doi = {10.3133/ofr86633},
  url = {https://pubs.usgs.gov/publication/ofr86633},
  note = {Source identifier: ofr86633}
}