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Which rivers flow year-round in the Arabian Desert region?
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Arabian Desert
The Arabian Desert, the largest desert in Asia, covering an area of about 900,000 square miles (2,300,000 square km).
Most drainage channels in the Arabian Desert are either dry or ephemeral, meaning they flow only when rainfall is heavy. However, there are two systems that flow perennially in the region: the Tigris and Euphrates rivers and Wadi Hajr in the southern Hadhramaut region.1