@misc{indiciae778701f7f5ef,
  title = {Preliminary geologic map of a prospective transportation route from Prudhoe Bay, Alaska to Canadian border, Part I, Beechey Point and Sagavanirktok quadrangles},
  year = {1973},
  doi = {10.3133/mf489},
  url = {https://pubs.usgs.gov/publication/mf489},
  note = {Source identifier: mf489}
}