@misc{indiciaeb47a951c8ab8,
  title = {Oblique map of Waterton-Glacier International Peace Park, Alberta, Canada, and Montana, United States},
  author = {T. R. Alpha},
  year = {1992},
  doi = {10.3133/i1508g},
  url = {https://pubs.usgs.gov/publication/i1508G},
  note = {Source identifier: i1508G}
}