Wadi Tawiyean

Wadi Tawiyean (Arabic: وادي الطويين, romanized: Wādī Aṭ Ṭawyēn) is a valley, or dry river, with ephemeral or intermittent flow, which flows almost exclusively during the rainy season, located in the east of the United Arab Emirates, in the emirate of Fujairah.

It forms its own drainage basin of 208 km², which is bordered to the north by the Wadi Khabb Shamsi basins, Wadi Naqab and Wadi Nahela; and to the south and west by those of Wadi Mu'taridah / Wadi Mutarid and Wadi Basseirah.

The entire Wadi Tawiyean catchment area, whose highest peak is Jabal Yibir 1,527 m (5,010 ft), brings together approximately 222 independent streams, most of them without known name, all of them classified into five grades or levels according to the Horton-Strahler numbering.

Of these, the most significant in terms of length and flow is by far the Wadi Khabb (27 km (17 mi)), to the point that its course is sometimes mistakenly identified as the Wadi Tawiyean itself. Other important tributaries are the Wadi Awsaq, the Wadi al Khurush, and the Wadi Sayraq.

They all flow into the Wadi Tawiyean, in the Sayh Muruq depression. next to the city of Tawiyean (Arabic: الطويين, romanized: Aţ Ţawyēn).

Although the total approximate length of the Wadi Tawiyean is only 6.5 km (4.0 mi) (much smaller than several of its tributaries), the watershed gets its name from the wadi where the river mouth is concentrated.