@misc{indiciae7139a13aa1fc,
  title = {Geologic features of dam sites in the Nehalem, Rogue, and Willamette River basins, Oregon, 1935-37},
  author = {A. M. Piper},
  year = {1947},
  doi = {10.3133/ofr4712},
  url = {https://pubs.usgs.gov/publication/ofr4712},
  note = {Source identifier: ofr4712}
}