@misc{indiciaee66f3857a92a,
  title = {Mineral resources of the Lincoln Back Country Area, Powell and Lewis and Clark Counties, Montana},
  author = {Melville Rhodes Mudge and R.L. Earhart and K. C. Watts and E.T. Tuchek and W. L. Rice and D. L. with a section on Geophysical Surveys by Peterson},
  year = {1971},
  doi = {10.3133/ofr71212},
  url = {https://pubs.usgs.gov/publication/ofr71212},
  note = {Source identifier: ofr71212}
}