Sanaga
The Sanaga River (previously German: Zannaga) is Cameroon's greatest river, flowing through the East, Centre, and Littoral regions. From the junction of the Djérem and Lom Rivers, it is around 603 kilometers (375 mi) long. The Sanaga-Djérem River system has a total length of approximately 1,067.5 kilometers (663.3 mi). With a total length of 464.5 kilometers, Djerem is the Sanaga River's longest source.
The Adamawa Plateau is the source of the Sanaga River. In the north of the East Region, it is formed by the confluence of the Djérem River and the Lom River. The Djérem River is 464.5 kilometers long (288.6 miles) and the Lom River is 424.2 kilometers long (263.6 mi). Apart from the originating rivers, the Mbam River is the greatest tributary of Sanaga, having a total length of 548 kilometers (341 mi).
Between two tropical moist forest ecoregions, the Sanaga River serves as a dividing line. The Atlantic Equatorial coastal forests extend south of the river through southwestern Cameroon and Equatorial Guinea, Gabon, the Republic of the Congo, Cabinda, and the Democratic Republic of the Congo, and the Cross-Sanaga-Bioko coastal forests lie to the north between the Sanaga River and the Cross River of Nigeria.
Length: 1,067.5 kilometers (663.3 mi)