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A valley is an elongated low area often running between hills or mountains and typically containing a river or stream ... Geography portal; Canyon – Deep chasm ...
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 ...
A canyon may also refer to a rift between two mountain peaks, such as those in ranges including the Rocky Mountains, the Alps, the Himalayas or the Andes. Usually, a river or stream carves out such splits between mountains. Examples of mountain-type canyons are Provo Canyon in Utah or Yosemite Valley in California's Sierra Nevada. Canyons ...
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.
Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, structure stratification, rock exposure, and soil type.Gross physical features or landforms include intuitive elements such as berms, mounds, hills, ridges, cliffs, valleys, rivers, peninsulas, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains ...
According to Merriam-Webster, a ravine is "a small, narrow, steep-sided valley that is larger than a gully and smaller than a canyon and that is usually worn by running water". [1] Some societies and languages do not differentiate between a gully and ravine; in others, there is a distinction, particularly when concerning environmental ...
Widening of the canyon by erosion inside the canyon, below the canyon side top edge, or origin or the stream, such as erosion caused by the streamflow inside it, is not called headward erosion. Headward erosion is a fluvial process of erosion that lengthens a stream, a valley or a gully at its head and also enlarges its drainage basin. The ...
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).