@misc{indiciae0e0098367eb0,
  title = {Geologic map of the Challis quadrangle, Custer and Lemhi Counties, Idaho},
  author = {David H. McIntyre and S. W. Hobbs},
  year = {1987},
  doi = {10.3133/gq1599},
  url = {https://pubs.usgs.gov/publication/gq1599},
  note = {Source identifier: gq1599}
}