@misc{indiciae074fce37dc96,
  title = {Geologic map of the Choteau 1 degree by 2 degrees Quadrangle, Lewis and Clark, Teton, Powell, Missoula, Lake, Hathead, and Cascade counties, Montana},
  author = {Melville Rhodes Mudge and Robert L. Earhart},
  year = {1979},
  doi = {10.3133/ofr79280},
  url = {https://pubs.usgs.gov/publication/ofr79280},
  note = {Source identifier: ofr79280}
}