@misc{indiciae9b4fcbe26f13,
  title = {Preliminary geologic map of Eagleton quadrangle, Montana},
  author = {Robert M. Lindvall},
  year = {1951},
  doi = {10.3133/ofr5171},
  url = {https://pubs.usgs.gov/publication/ofr5171},
  note = {Source identifier: ofr5171}
}