@misc{indiciaeb91378ff6df3,
  title = {Iron ore deposits near Scappoose, Columbia County, Oregon},
  author = {P.E. Hotz},
  year = {1945},
  doi = {10.3133/ofr4533},
  url = {https://pubs.usgs.gov/publication/ofr4533},
  note = {Source identifier: ofr4533}
}