Credit: Top: National Archives of Canada PA-162903, PA-162902, PA-162894, PA-162895, PA-162901. Bottom: NPS photo/R Karpilo & S Venator
Photo pair shows glacial retreat on both sides of Chilkoot Pass. View of Crater Lake and glaciers on both sides of the United States-Canada boundary.
Top photo is composed of five photos made in 1906 by George R. White-Fraser of the International Boundary Commission. Bottom photo was made August 5, 2014 by Ronald D. Karpilo, Jr. and Sarah C. Venator/NPS.