@misc{indiciaebc9be5704248,
  title = {Geologic map of southeastern Alaska},
  author = {G. E. Gehrels and H. C. Berg},
  year = {1992},
  doi = {10.3133/i1867},
  url = {https://pubs.usgs.gov/publication/i1867},
  note = {Source identifier: i1867}
}