@misc{indiciae00d752955ac6,
  title = {Mineral resources of the eastern Pioneer Mountains, Beaverhead County, Montana},
  author = {Robert Carl Pearson and B. R. Berger and H. E. Kaufmann and W. F. Hanna and E-an Zen},
  year = {1988},
  doi = {10.3133/b1766},
  url = {https://pubs.usgs.gov/publication/b1766},
  note = {Source identifier: b1766}
}