@misc{indiciae0e488da27706,
  title = {Geologic Map of the Bearshack Creek Quadrangle, McCone and Prairie Counties, Montana},
  author = {R. B. Colton and J. P. McGraw and S.L. Durst},
  year = {1988},
  doi = {10.3133/ofr88634},
  url = {https://pubs.usgs.gov/publication/ofr88634},
  note = {Source identifier: ofr88634}
}