@misc{indiciae20ae7ad1326a,
  title = {Geologic map of the Northport Quadrangle, Washington},
  author = {Robert Giertz Yates},
  year = {1971},
  doi = {10.3133/i603},
  url = {https://pubs.usgs.gov/publication/i603},
  note = {Source identifier: i603}
}