@misc{indiciaeaa24605b7dc1,
  title = {Reconnaissance geologic map of the Pilot Creek Quadrangle, Humboldt and Trinity counties, California},
  author = {K. R. Aalto and William Porter Irwin and H.M. Kelsey},
  year = {1988},
  doi = {10.3133/ofr88363},
  url = {https://pubs.usgs.gov/publication/ofr88363},
  note = {Source identifier: ofr88363}
}