Claim: Kadéï River total drainage basin (any area of land where precipitation collects and drains off) is 24,000 km and the river rises from the eastern Adamawa Plateau it is also swelled by two tributes
Evidence: The Kadéï River is a tributary of the Sangha River that flows through Cameroon and the Central African Republic. Its total drainage basin is 24,000 km. The river rises from the eastern Adamawa Plateau, southeast of Garoua-Boulaï ( in Cameroon's East Province. The Kadéï is swelled by two tributaries, the Doumé at Mindourou () and the Boumbé (), before flowing east into the Central African Republic. A drainage basin is any area of land where precipitation collects and drains off into a common outlet, such as into a river, bay, or other body of water.