@misc{indiciaef126eb68af0b,
  title = {Surficial geologic map of the Granite Falls 15-minute Quadrangle, Snohomish County, Washington},
  author = {D. B. Booth},
  year = {1989},
  doi = {10.3133/i1852},
  url = {https://pubs.usgs.gov/publication/i1852},
  note = {Source identifier: i1852}
}