Today's shot is a mystery. Three possibilities from most to least likely. There is a hike running from Emerald Lake, BC to Takakkaw Falls over a couple of passes. Or the Dolomite Pass hike north of Johnson Canyon in Banff National Park. Least likely would be somewhere in Glacier National Park. I do know it was 1975 as there were numerous loading and processing flaws that I had to clean-up, and it was from a batch of expired Ilfprd FP-4 film I had been given. As time went by I did get much better at preventing dust and processing streaks.
Schneider 127mm Xenar Press lens.
EDIT: The shale beds on the left at the back of the foreground area, place this close to the Burgess Shale fossil quarries. So this was definitely Burgess Pass on the Yoho hike.