@misc{indiciaeb24c398109a5,
  title = {Geologic investigations of proposed power sites at Cooper, Grant, Ptarmigan and Crescent Lakes, Alaska},
  author = {George Plafker},
  year = {1955},
  doi = {10.3133/b1031a},
  url = {https://pubs.usgs.gov/publication/b1031A},
  note = {Source identifier: b1031A}
}