@misc{indiciaed960637b7c6c,
  title = {Cobalt-copper deposits of the Blackbird district, Lemhi County, Idaho},
  author = {J. S. Vhay},
  year = {1947},
  doi = {10.3133/ofr481},
  url = {https://pubs.usgs.gov/publication/ofr481},
  note = {Source identifier: ofr481}
}