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The Grand Canyon, Arizona, at the confluence of the Colorado River and Little Colorado River.. A canyon (from Spanish: cañón; archaic British English spelling: cañon), [1] gorge or chasm, is a deep cleft between escarpments or cliffs resulting from weathering and the erosive activity of a river over geologic time scales. [2]
The Grand Canyon [a] is a steep-sided canyon carved by the Colorado River in Arizona, United States. The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains a depth of over a mile (6,093 feet or 1,857 meters).
Canyon / Gorge – Deep chasm between cliffs; Chine – Steep-sided river valley; Couloir – Steep, narrow mountain gully; Defile (geography) – Narrow pass or gorge between mountains or hills; Gully – Landform created by running water and/or mass movement eroding sharply into soil; Mountain pass – Route through a mountain range or over a ...
Geography portal; Canyon – Deep chasm between cliffs; Grass valley – Meadow within a forested and relatively small drainage basin; Gully – Landform created by running water and/or mass movement eroding sharply into soil
Brady Canyon is a cliff-forming gray limestone with some chert. Wood Ranch is a slope-forming pale red and gray siltstone and dolomitic sandstone. An unconformity marks the top of this formation. One of the highest, and therefore youngest, formations seen in the Grand Canyon area is the Kaibab Limestone (see 6d in figure 1).
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This side canyon of Grand Coulee in Washington was carved by the Missoula floods. A view through a coulee in Alberta , with steep but lower sides, and water in the bottom. Coulee , or coulée ( / ˈ k uː l eɪ / or / ˈ k uː l iː / ), [ 1 ] is any of various different landforms, all of which are kinds of valleys or drainage zones.
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