@misc{indiciaedc3b61a7f919,
  title = {Mineral resource potential and geology of the Challis National Forest, Idaho, with a section on salable minerals},
  author = {Ronald G. Worl and A.B. Wilson and C. L. Smith and M. D. Kleinkopf and R.C. Sykes},
  year = {1989},
  doi = {10.3133/b1873},
  url = {https://pubs.usgs.gov/publication/b1873},
  note = {Source identifier: b1873}
}