@misc{indiciaec628cc7fe8df,
  title = {Mineral resource potential map of the Madison Roadless Area, Gallatin and Madison counties, Montana},
  author = {F. S. Simons and R. G. Tysdal and R. E. Van Loenen and R.H. Lambeth and S. W. Schmauch and R. T. Mayerle and M. M. Hamilton},
  year = {1983},
  doi = {10.3133/mf1605a},
  url = {https://pubs.usgs.gov/publication/mf1605A},
  note = {Source identifier: mf1605A}
}