@misc{indiciaea375dc62d18d,
  title = {Geologic map of the Cayucos-San Luis Obispo Region, San Luis Obispo County, California},
  author = {C.A. Hall and S.W. Prior},
  year = {1975},
  doi = {10.3133/mf686},
  url = {https://pubs.usgs.gov/publication/mf686},
  note = {Source identifier: mf686}
}