@misc{indiciae43892dbebcc7,
  title = {Metallic mineral resources map of the Ophir quadrangle, Alaska},
  author = {Edward Huntington Cobb},
  year = {1968},
  doi = {10.3133/ofr6852},
  url = {https://pubs.usgs.gov/publication/ofr6852},
  note = {Source identifier: ofr6852}
}