Sénégal Valley

The Senegal River, approximately 1,020 miles long, is a vital waterway in western Africa. Its drainage basin covers about 174,000 square miles. The river originates from headstreams in the Fouta Djallon highlands of Guinea and flows northwest and then west to the Atlantic Ocean. For a significant portion of its course, it forms the border between Mauritania and Senegal.12

The river's valley is characterized by an alluvial plain that can be up to 12 miles wide. During the flood season, the water level rises significantly, occupying the entire valley. The climate in the Senegal valley ranges from semi-arid in the north to more humid in the south, supporting diverse plant life like acacias and grasses, and various animal species including fish, birds, and mammals.13

Historically, the Senegal River valley has been inhabited by groups such as the Wolof, Tukulor, and Soninke. Agriculture, particularly millet and rice cultivation, is prominent in the fertile alluvial areas, supported by irrigation systems and dams. The river also serves as a transportation route, though its economic importance has shifted over time.1456