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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]
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 ...
A gulch is a deep V-shaped valley formed by erosion. It may contain a small stream or dry creek bed and is usually larger in size than a gully. [1] Sudden intense rainfall upstream may produce flash floods in the bed of the gulch. Witches Gulch found in the Dells of the Wisconsin River. In eastern Canada, gulch refers to: [2] a narrow deep cove ...
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; Paleovalley – An inactive river or stream channel that has been filled or buried
U-shaped valley, also known as glaciated valley – Valleys formed by glacial scouring; Gully – Landform created by running water and/or mass movement eroding sharply into soil; Canyon, also known as Gorge – Deep chasm between cliffs; Valley – Low area between hills, often with a river running through it
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At more than 4,000 km (2,500 mi) long, 200 km (120 mi) wide and up to 7 km (23,000 ft) deep, [3] [4] Valles Marineris is the largest canyon in the Solar System. [5] Valles Marineris is located along the equator of Mars, on the east side of the Tharsis Bulge, and stretches for nearly a quarter of the planet's circumference.
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