Oued Seguellil
Oued Seguellil River (also Oued Séguélil, Oued Seguelil, or Oued Seguellîl) ranks 6th on the list of the longest rivers in Mauritania . It starts on the Adrar Plateau and goes south-west through the town of Atar before becoming lost in the sands. The Adrar Plateau, near Atar, is home to a many of gorges, including the oued el Abiod. The majority of these gorges discharge into the Seguellil wadi bed, leaving a network of lakes and intermittent streams in their wake. The disputed Seguellil-dam, which opened in 2019, lies 20 kilometers south of Atar. The river disappears in the sands north of the Adrar Plateau's western slopes.
In addition to agricultural development, The Oued Seguellil River is also known for having a lot of fish, helping fishermen to develop fishing on the river, giving a high income every year, the river is the place that provides water for daily life. for many people, develop hydroelectricity to supply electricity to the city, rich in mineral resources, bring a source of high economic value, contribute to improving people's life.