@misc{indiciae585bdfc1f3f6,
  title = {Geologic map of the Gallatin Divide Roadless Area, Gallatin and Park counties, Montana},
  author = {F. S. Simons and R. E. Van Loenen and S. L. Moore},
  year = {1985},
  doi = {10.3133/mf1569b},
  url = {https://pubs.usgs.gov/publication/mf1569B},
  note = {Source identifier: mf1569B}
}