@misc{indiciae08ea1e3f02ff,
  title = {Geologic map of upper Clayhole Valley and vicinity, Mohave County, northwestern Arizona},
  author = {George H. Billingsley and Susan S. Priest},
  year = {2003},
  doi = {10.3133/mf2418},
  url = {https://pubs.usgs.gov/publication/mf2418},
  note = {Source identifier: mf2418}
}