@misc{indiciae7613d8c21685,
  title = {Map of bedrock geologic data sites, Glacier Peak Wilderness study, Chelan, Skagit, and Snohomish counties, Washington},
  author = {Arthur B. Ford},
  year = {1983},
  doi = {10.3133/ofr83454},
  url = {https://pubs.usgs.gov/publication/ofr83454},
  note = {Source identifier: ofr83454}
}