@misc{indiciae9eb3ee1bfca1,
  title = {Geologic map of the Glacier Peak quadrangle, Snohomish and Chelan Counties, Washington},
  author = {D. F. Crowder and R. W. Tabor and Arthur B. Ford},
  year = {1966},
  doi = {10.3133/gq473},
  url = {https://pubs.usgs.gov/publication/gq473},
  note = {Source identifier: gq473}
}