@misc{indiciae24eb934c8b5e,
  title = {Preliminary bedrock geologic map of part of the northern disturbed belt, Lewis and Clark, Teton, Pondera, Glacier, Flathead, Cascade and Powell counties, Montana},
  author = {Melville Rhodes Mudge},
  year = {1979},
  doi = {10.3133/ofr79943},
  url = {https://pubs.usgs.gov/publication/ofr79943},
  note = {Source identifier: ofr79943}
}