@misc{indiciae802bc21c3058,
  title = {Geology of the Blue Mountains region of Oregon, Idaho, and Washington: Stratigraphy, physiography, and mineral resources of the Blue Mountains region},
  author = {H. C. Brooks},
  year = {1994},
  doi = {10.3133/pp1439},
  url = {https://pubs.usgs.gov/publication/pp1439},
  note = {Source identifier: pp1439}
}