@misc{indiciae1a6acfb00d5a,
  title = {Pyramid Peak folio, California},
  author = {Waldemar Lindgren},
  year = {1896},
  doi = {10.3133/gf31},
  url = {https://pubs.usgs.gov/publication/gf31},
  note = {Source identifier: gf31}
}