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 (5.8972°N 14.5583°W) in Cameroon's East Province. The Kadéï is swelled by two tributaries, the Doumé at Mindourou (4.1292°N 14.5728°W) and the Boumbé (4.1125°N 15.1194°W), before flowing east into the Central African Republic. At Nola (3.5194°N 16.0431°W), the Kadéï meets the Mambéré and becomes the Sangha. The Kadéï is part of the Congo River basin.[1]