@misc{indiciae4c48eea37260,
  title = {Surficial geologic map of the Ambler River Quadrangle, Alaska},
  author = {T. D. Hamilton},
  year = {1984},
  doi = {10.3133/mf1678},
  url = {https://pubs.usgs.gov/publication/mf1678},
  note = {Source identifier: mf1678}
}