@misc{indiciae8d7ac749fe90,
  title = {Preliminary bedrock geologic map of part of the northern disturbed belt, Lewis and Clark, Teton, Pondera, Glacier, Flathead, and Powell Counties, Montana},
  author = {Melville R. Mudge and Robert L. Earhart and Dudley D. Rice},
  year = {1977},
  url = {https://pubs.usgs.gov/publication/70047784},
  note = {Source identifier: 70047784}
}