@misc{indiciaebdba3a053528,
  title = {A geological reconnaissance across the Cascade range near the forty-ninth parallel},
  author = {George Otis Smith and Frank C. Calkins},
  year = {1904},
  doi = {10.3133/b235},
  url = {https://pubs.usgs.gov/publication/b235},
  note = {Source identifier: b235}
}