Ravine

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A ravine is a very small valley, which is often the product of streamcutting erosion. Often found in urban areas, ravines are typically classified as larger in scale than gullies, although smaller than valleys. A ravine is generally a slope landform of relatively steep (cross-sectional) sides, on the order of twenty to seventy percent in gradient. Ravines may or may not have active streams flowing along the downslope channel which originally formed them; moreover, often they are characterised by intermittent streams, since their geographic scale may not be sufficiently large to support a perennial watercourse.

Notable ravines

• Marine Gardens State Park, Florida
• Babi Yar, Kiev, Ukraine
• Toronto ravine system, Toronto, Ontario
• Ravines are featured prominently in many of the works of Ray Bradbury when writing about his hometown of Waukegan, Illinois in his book Dandelion Wine.
• Barranco, Lima, Peru.

See also

• Riparian zone

Notes

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Last updated on Friday March 07, 2008 at 22:43:04 PST (GMT -0800)
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