@misc{indiciae9649b3b7e11e,
  title = {Glacier observations, Glacier National Park, Montana, 1964},
  author = {Arthur Johnson},
  year = {1965},
  doi = {10.3133/ofr6581},
  url = {https://pubs.usgs.gov/publication/ofr6581},
  note = {Source identifier: ofr6581}
}