@misc{indiciaea0db2c6eef33,
  title = {Geology and igneous petrology of the northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana},
  author = {Harry Wynn Smedes},
  year = {1966},
  doi = {10.3133/pp510},
  url = {https://pubs.usgs.gov/publication/pp510},
  note = {Source identifier: pp510}
}