@misc{indiciae9bceb13d212e,
  title = {Preliminary geologic map of the southeast quarter of the Gunsight Butte quadrangle, Kane and San Juan Counties, Utah, and Coconino County, Arizona},
  author = {Fred Peterson and H.A. Waldrop},
  year = {1966},
  doi = {10.3133/ofr66102},
  url = {https://pubs.usgs.gov/publication/ofr66102},
  note = {Source identifier: ofr66102}
}