Glaciers erode U-shaped valleys with a flat floor and steep sides. The glacier uses the processes of plucking and abrasion to widen, steepen, deepen and smooth V-shaped river valleys into a 'U' shape.

See that U-shaped valley? That’s Lairig Ghru. It was carved out by a glacier, a huge river of ice, during the ice age - just like corries and other glacial features. As glaciers move downhill ...

Rapidly receding, the Athabasca Glacier draws visitors from around the world. The glacier is part of the massive Columbia Icefield, which divides southern Jasper and northern Banff, and is easily ...

If so, you'll probably want to skip the Glacier Skywalk. Everyone else should consider trekking out over the U-shaped walkway, which extends over the Sunwapta Valley. The architectural marvel ...