@misc{indiciae8b81c2410713,
  title = {Regional geologic and geophysical base maps of western North America and adjacent oceans},
  author = {Tau Rho Alpha},
  year = {1978},
  doi = {10.3133/ofr78603},
  url = {https://pubs.usgs.gov/publication/ofr78603},
  note = {Source identifier: ofr78603}
}