This is part of the Salmon Icefield and about 10 km north of the Salmon Glacier viewpoint. The mine is to the left of the glacier toe, out of the image.
Glaciers move by 3 methods: gravity, internal deformation, and by basal slip, when the ice masses slides over its bed on a film of water. Sections of the glacier can move at different rates. In a confined valley glacier, the fastest ice currents are at the center of the ice surface. A shearing effect results on the surface due to the different in speed, splitting open the ice to form crevasses open fissures glacier ice.