@misc{indiciae8773985aacc5,
  title = {Geologic map of the Hamilton Buttes Quadrangle, southern Cascade Range, Washington},
  author = {D. A. Swanson},
  year = {1996},
  doi = {10.3133/ofr9616},
  url = {https://pubs.usgs.gov/publication/ofr9616},
  note = {Source identifier: ofr9616}
}