@misc{indiciaea5975dea5aca,
  title = {Geologic map of the southern part of the lower Red Rock Lake Quadrangle Beaverhead and Madison counties, Montana, and Clark County, Idaho},
  author = {I. J. Witkind and H.J. Prostka},
  year = {1980},
  doi = {10.3133/i1216},
  url = {https://pubs.usgs.gov/publication/i1216},
  note = {Source identifier: i1216}
}