@misc{indiciae76cd4d61166e,
  title = {Reconnaissance geologic map of the Ash Fork quadrangle, Yavapai and Coconino Counties, Arizona},
  author = {M. H. Krieger},
  year = {1967},
  doi = {10.3133/i499},
  url = {https://pubs.usgs.gov/publication/i499},
  note = {Source identifier: i499}
}