@misc{indiciae589135fe694c,
  title = {Geologic reconnaissance of the northern Coast Ranges and Klamath Mountains, California, with a summary of the mineral resources},
  author = {W. P. Irwin},
  year = {1960},
  url = {https://pubs.usgs.gov/publication/70197735},
  note = {Source identifier: 70197735}
}