@misc{indiciaeb6a39d266417,
  title = {Geologic map of the Charley River quadrangle, east-central Alaska},
  author = {E. E. Brabb and Michael Churkin},
  year = {1969},
  doi = {10.3133/i573},
  url = {https://pubs.usgs.gov/publication/i573},
  note = {Source identifier: i573}
}