@misc{indiciae3ae983671207,
  title = {Mineral resources of the Seven Blackfoot Wilderness Study Area, Garfield County, Montana},
  author = {Robert D. Hettinger and Viki Bankey and Michael S. Miller},
  year = {1988},
  doi = {10.3133/b1722d},
  url = {https://pubs.usgs.gov/publication/b1722D},
  note = {Source identifier: b1722D}
}