@misc{indiciae7bf9b5301b8d,
  title = {Geologic map of the surficial deposits of the Skull Mountain Quadrangle, Nye County, Nevada},
  author = {W. C. Swadley and H. E. Huckins},
  year = {1990},
  doi = {10.3133/i1972},
  url = {https://pubs.usgs.gov/publication/i1972},
  note = {Source identifier: i1972}
}