Glacial landscape, Torngat Mountains, northern Labrador.

The Torngat Mountains of northern Labrador contain some of the finest examples of alpine glacial landforms in Canada. The bowl-shaped depression in the centre of the photograph is known as a cirque. During ice ages, a glacier grows in the cirque and slowly excavates the depression. The mountain, composed of ancient rocks of the Canadian Shield, is known as Cirque Mountain.

© 1998, Geological Survey of Canada, Natural Resources Canada.