@misc{indiciaed04ea0e09d67,
  title = {Hydrologic Unit Map – 1987, State of Alaska},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1976},
  doi = {10.3133/hu2},
  url = {https://pubs.usgs.gov/publication/hu2},
  note = {Source identifier: hu2}
}