A low-lying area of land bounded by higher ground on both sides, usually carved by the long-term action of a river or, at higher elevations, by a glacier, and generally sloping continuously from its head down toward an outlet. Valley shape and profile vary widely with the process that cut it, from the narrow V-shaped cross-section of active river erosion to the broad U-shaped trough left by a glacier.
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Shaped By
Source Hanging Valley Formation (Wikipedia)
Source Hanging Valley Formation (Wikipedia)
Sources
Wikidata: Valley
Wikidata Q26840289, class allow-list match (w-wdresolver-0926)View the Source Hanging Valley Formation (Wikipedia)
Wikimedia FoundationShaped By: Erosion, Lead
Most valleys are formed by erosion of the land surface by rivers or streams over a very long period.
Shaped By: Glaciation, Lead
Some valleys are formed through erosion by glacial ice.
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