thumb|Wadi Ghuweir Trail to Feynan, Jordan
A wadi is a valley, ravine, or watercourse in desert regions that remains dry for most of the year but can fill with water during rainy seasons. Wadis are important natural features in arid landscapes that provide water sources and create pathways through otherwise barren terrain.
AI-generated from the Wikipedia summary — may contain errors.
thumb|Wadi Ghuweir Trail to Feynan, Jordan
A wadi ( ; ) is a river valley or a wet (ephemeral) riverbed that contains water only when heavy rain occurs. Wadis are located on gently sloping, nearly flat parts of deserts; commonly they begin on the lowest portions of alluvial fans and extend to inland sabkhas or dry lakes. Permanent channels do not exist, due to lack of continual water flow. Water percolates down into the stream bed, causing an abrupt loss of energy and resulting in vast deposition. Wadis may develop dams of sediment that change the stream patterns in the next flash flood.
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