@misc{indiciaee9824a1f6f1d,
  title = {Preliminary geologic map of the Neihart (7 1/2') quadrangle, Cascade and Judith Basin Counties, Montana},
  author = {William R. Keefer},
  year = {1969},
  doi = {10.3133/ofr69136},
  url = {https://pubs.usgs.gov/publication/ofr69136},
  note = {Source identifier: ofr69136}
}