@misc{indiciae2cef22846246,
  title = {Geologic map of the Beaver 15 minute Quadrangle, Beaver County, Utah},
  author = {Michael N. Machette and T. A. Steven and C. G. Cunningham and J. J. Anderson},
  year = {1981},
  doi = {10.3133/ofr81951},
  url = {https://pubs.usgs.gov/publication/ofr81951},
  note = {Source identifier: ofr81951}
}