@misc{indiciae6583e4abf095,
  title = {Photogeologic map of the Mount Peale-16 quadrangle, San Juan County, Utah, and San Miguel County, Colorado},
  author = {R.J. Hackman},
  year = {1956},
  doi = {10.3133/i176},
  url = {https://pubs.usgs.gov/publication/i176},
  note = {Source identifier: i176}
}