@misc{indiciae94d7ea015864,
  title = {Map showing slope stability in western Whatcom County, Washington},
  author = {D. J. Easterbrook},
  year = {1976},
  doi = {10.3133/i854c},
  url = {https://pubs.usgs.gov/publication/i854C},
  note = {Source identifier: i854C}
}