@misc{indiciae1e595ee02d67,
  title = {Photogeologic map of the Virgin SE quadrangle, Washington County, Utah, and Mohave County, Arizona},
  author = {C. L. Pillmore},
  year = {1956},
  doi = {10.3133/i179},
  url = {https://pubs.usgs.gov/publication/i179},
  note = {Source identifier: i179}
}