@misc{indiciae8afc10f0535c,
  title = {Map showing geochemical summary for the Bald Rock and Middle Fork Feather River Roadless Areas, Butte and Plumas counties, California},
  author = {Jocelyn A. Peterson and Martin L. Sorensen},
  year = {1985},
  doi = {10.3133/mf1427c},
  url = {https://pubs.usgs.gov/publication/mf1427C},
  note = {Source identifier: mf1427C}
}