@misc{indiciae5a873db3705f,
  title = {Preliminary geologic map of southwestern Oregon west of meridian 122 degrees west and south of parallel 43 degrees south},
  author = {Francis G. Wells},
  year = {1955},
  doi = {10.3133/mf38},
  url = {https://pubs.usgs.gov/publication/mf38},
  note = {Source identifier: mf38}
}