@misc{indiciae4c6bcee930c5,
  title = {The eastern front of the Bitterroot Range, Montana},
  author = {C. P. Ross},
  year = {1952},
  doi = {10.3133/b974e},
  url = {https://pubs.usgs.gov/publication/b974E},
  note = {Source identifier: b974E}
}