@misc{indiciaeefdf8412195d,
  title = {Geologic map of the Gulkana B-1 quadrangle, south-central Alaska},
  author = {Donald H. Richter},
  year = {1989},
  doi = {10.3133/gq1655},
  url = {https://pubs.usgs.gov/publication/gq1655},
  note = {Source identifier: gq1655}
}