A River Unknown

This image of a rushing creek was on the same negative strip as the photo of Hope and William Woods I posted yesterday, so presumably it was shot at roughly the same time and place. I wonder what they were thinking when they shot this; what was significant about this torrent of water?

CORRECTION: Upon checking the negatives again, this photo was not on the same strip as the shot of my grandparents. Mom speculated that perhaps this was part of the road to Flin Flon back in the 1960s.