@misc{indiciae332d6f4b327a,
  title = {Geologic map of the Diamond Butte Quadrangle, Malheur County, Oregon},
  author = {T. L. Vercoutere and D. B. Vander Meulen and S.A. Minor},
  year = {1987},
  doi = {10.3133/mf1901},
  url = {https://pubs.usgs.gov/publication/mf1901},
  note = {Source identifier: mf1901}
}