@misc{indiciaebc6ca60f1fee,
  title = {Geologic map of the Coconino Point and Grandview Point quadrangles, Coconino County, Arizona},
  author = {G. H. Billingsley and C.W. Barnes and G. E. Ulrich},
  year = {1985},
  doi = {10.3133/i1644},
  url = {https://pubs.usgs.gov/publication/i1644},
  note = {Source identifier: i1644}
}