North Cascades - Geography

Geography

The large amount of precipitation, much of it in the form of snow, and the resulting glaciation, combine with the regional uplift to create a dramatic landscape in the western part of the range. Deep, U-shaped valleys carved by glaciers in Pleistocene time separate sharp ridges and peaks carved into steep shapes by more recent snow and ice. The eastern and northernmost parts of the range are much more plateau-like in character, though in the case of the northernmost areas graven by deep valleys along the flank of the Fraser Canyon, notably that of the Anderson River.

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