@misc{indiciae9c1522fa851d,
  title = {Geology of parts of the Johnny Gulch quadrangle, Montana},
  author = {Val L. Freeman},
  year = {1954},
  doi = {10.3133/ofr5492},
  url = {https://pubs.usgs.gov/publication/ofr5492},
  note = {Source identifier: ofr5492}
}