@misc{indiciae2e1cee89498d,
  title = {Geologic map of the Holden quadrangle, Snohomish and Chelan Counties, Washington},
  author = {Fred W. Cater and D. F. Crowder},
  year = {1967},
  doi = {10.3133/gq646},
  url = {https://pubs.usgs.gov/publication/gq646},
  note = {Source identifier: gq646}
}