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U-shaped valley

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Image:Glacial Valley MtHoodWilderness.jpg
A U-shaped valley is one formed by the process of glaciation. They have a characteristic U-shape, with steep, straight sides, and a flat bottom. Glaciated valleys are formed when a glacier travels across and down a slope, carving the valley by the action of scouring. When the ice recedes or thaws, the valley remains, often littered with small boulders that were transported within the ice.

Examples of U-valleys are found in mountainous region like the Alps or Rocky mountains but also in Scotland, Scandinavia or Canada. A classic glacial trough was formed by the St. Mary River in Glacier National Park in Montana, USA.

Image:Glacier park1.jpg


[edit] See also

Image:Franz Josef glacier.JPG This glaciology article is a stub. You can help Wikipedia by expanding it.
cs:Trog

de:Trogtal fr:Vallée glaciaire lt:Trogas nl:Trogdal pl:Dolina lodowcowa

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