@misc{indiciae94629e7a25ac,
  title = {Aeromagnetic and gravity maps of the Freel and Dardanelles Roadless Areas, Alpine and El Dorado counties, California},
  author = {Donald Plouff},
  year = {1983},
  doi = {10.3133/mf1322b},
  url = {https://pubs.usgs.gov/publication/mf1322B},
  note = {Source identifier: mf1322B}
}