@misc{indiciae8f00c85598a5,
  title = {Geology of the Vaughn quadrangle, Montana},
  author = {Edwin K. Maughan},
  year = {1961},
  doi = {10.3133/gq135},
  url = {https://pubs.usgs.gov/publication/gq135},
  note = {Source identifier: gq135}
}