@misc{indiciae04bec72250da,
  title = {Geologic map and sections of the Klondyke quadrangle, Arizona},
  author = {Frank S. Simons},
  year = {1961},
  doi = {10.3133/ofr61156},
  url = {https://pubs.usgs.gov/publication/ofr61156},
  note = {Source identifier: ofr61156}
}