@misc{indiciaea92d05fa0585,
  title = {Map of Oregon RARE II mineral resource potential – Appraisal of mineral resource potential of proposed roadless areas in national forests, Oregon (exclusive of coal, oil, gas, and construction materials)},
  author = {George Walton Walker},
  year = {1978},
  doi = {10.3133/ofr78861},
  url = {https://pubs.usgs.gov/publication/ofr78861},
  note = {Source identifier: ofr78861}
}