@misc{indiciaeeec2e4c423ee,
  title = {Geologic map of the Mackay quadrangle, south-central Idaho},
  author = {W. H. Nelson and C. P. Ross},
  year = {1969},
  doi = {10.3133/i580},
  url = {https://pubs.usgs.gov/publication/i580},
  note = {Source identifier: i580}
}