@misc{indiciaef4f688795192,
  title = {Geologic map of the Pando area, Eagle and Summit Counties, Colorado},
  author = {Ogden Tweto},
  year = {1953},
  doi = {10.3133/mf12},
  url = {https://pubs.usgs.gov/publication/mf12},
  note = {Source identifier: mf12}
}