@misc{indiciae4baae31e6516,
  title = {Geology and mineral deposits, east flank of the Elkhorn Mountains, Broadwater County, Montana},
  author = {Montis Ruhl Klepper and E. T. Ruppel and V. L. Freeman and R. A. Weeks},
  year = {1971},
  doi = {10.3133/pp665},
  url = {https://pubs.usgs.gov/publication/pp665},
  note = {Source identifier: pp665}
}