@misc{indiciae569e0e59f4d9,
  title = {Preliminary integrated geologic map databases for the United States - Western states: California, Nevada, Arizona, Washington, Oregon, Idaho, and Utah},
  author = {Steve Ludington and Barry C. Moring and Robert J. Miller and Kathryn Flynn and Melanie J. Hopkins and Paul Stone and David R. Bedford and Gordon A. Haxel},
  year = {2005},
  doi = {10.3133/ofr20051305},
  url = {https://pubs.usgs.gov/publication/ofr20051305},
  note = {Source identifier: ofr20051305}
}