@misc{indiciaeb1e942b54aa4,
  title = {Spatial digital database for the geologic map of Oregon},
  author = {George W. Walker and Norman S. MacLeod and Robert J. Miller and Gary L. Raines and Katherine A. Connors},
  year = {2003},
  doi = {10.3133/ofr200367},
  url = {https://pubs.usgs.gov/publication/ofr200367},
  note = {Source identifier: ofr200367}
}