@misc{indiciae0754486183c1,
  title = {Mineral resources of Wilderness Study areas: central and far western Oregon},
  author = {Jay A. Ach and Joel R. Bergquist and William J. Pickthorn},
  year = {1990},
  doi = {10.3133/b1744},
  url = {https://pubs.usgs.gov/publication/b1744},
  note = {Source identifier: b1744}
}