@misc{indiciae78ce4bbcb3be,
  title = {Geology of the Blue Mountains region of Oregon, Idaho, and Washington: Cenozoic geology of the Blue Mountains region},
  year = {1990},
  doi = {10.3133/pp1437},
  url = {https://pubs.usgs.gov/publication/pp1437},
  note = {Source identifier: pp1437}
}