@misc{indiciaeaa892e94f5bc,
  title = {Mineral resource potential of the Middle Santiam Roadless Area, Linn County, Oregon},
  author = {G. W. Walker},
  year = {1984},
  doi = {10.3133/ofr84495},
  url = {https://pubs.usgs.gov/publication/ofr84495},
  note = {Source identifier: ofr84495}
}