@misc{indiciaea9eb11997785,
  title = {Geologic map of the Mount Hood Wilderness, Clackamas and Hood River counties, Oregon},
  author = {T. E. Keith and M.H. Beeson and K.E. Bargar},
  year = {1982},
  doi = {10.3133/mf1379a},
  url = {https://pubs.usgs.gov/publication/mf1379A},
  note = {Source identifier: mf1379A}
}