@misc{indiciaef81a99df5808,
  title = {Geologic map of the Redding 1 x 2 degree quadrangle, Shasta, Tehama, Humboldt, and Trinity Counties, California},
  author = {Luis A. Fraticelli and J. P. Albers and W. P. Irwin and M.C. Blake},
  year = {1987},
  doi = {10.3133/ofr87257},
  url = {https://pubs.usgs.gov/publication/ofr87257},
  note = {Source identifier: ofr87257}
}