@misc{indiciaebd9ff10ba721,
  title = {Geologic map of the Twin Lakes 15' Quadrangle, Ferry County, Washington},
  author = {K.F. Fox and G.E. Becraft},
  year = {1994},
  doi = {10.3133/ofr93715},
  url = {https://pubs.usgs.gov/publication/ofr93715},
  note = {Source identifier: ofr93715}
}