@misc{indiciaeabd07bd88c26,
  title = {Geologic map of the Weaverville 15' quadrangle, Trinity County, California},
  author = {William P. Irwin},
  year = {2009},
  doi = {10.3133/sim3095},
  url = {https://pubs.usgs.gov/publication/sim3095},
  note = {Source identifier: sim3095}
}