@misc{indiciaeb1960b0dfa65,
  title = {Crater Lake: blue through time},
  author = {Gary L. Larson and Mark Buktenica and Robert Collier},
  year = {2003},
  doi = {10.3133/fs01803},
  url = {https://pubs.usgs.gov/publication/fs01803},
  note = {Source identifier: fs01803}
}