@misc{indiciaec7f8f38dd839,
  title = {Geologic field-trip guide of volcaniclastic sediments from snow- and ice-capped volcanoes—Mount St. Helens, Washington, and Mount Hood, Oregon},
  author = {Thomas C. Pierson and Lee Siebert and Christopher J. Harpel and Kevin M. Scott},
  year = {2018},
  doi = {10.3133/sir20175022f},
  url = {https://pubs.usgs.gov/publication/sir20175022F},
  note = {Source identifier: sir20175022F}
}