@misc{indiciae03f1e9e266cb,
  title = {Geologic map of the Huachuca and Mustang Mountains, southeastern Arizona},
  author = {P. T. Hayes and R.B. Raup},
  year = {1968},
  doi = {10.3133/i509},
  url = {https://pubs.usgs.gov/publication/i509},
  note = {Source identifier: i509}
}