Drainage
Numerous rivers run through the South Cameroon Plateau, particularly in the southeast. These bodies of water drain into both the Atlantic Ocean and the Congo River basin. The rivers south of the Sanaga follow an equatorial regime; that is, they reach a high water point during the rainy seasons and a low point during the dry seasons. There, rivers such as the Dja, Boumba, and Sangha have carved out valleys. The rivers flow slowly and experience seasonal flooding during the rainy season.
The Sanaga and rivers north of it follow a complex, or mixed, Sudano-Guinea regime because the territory they drain lies in both tropical and equatorial climate zones. This means that upstream, they follow a tropical regime, with high water during the long rainy season and low water during the long dry season. However, further south, they receive constant rainfall and flow steadily.
Read more about this topic: South Cameroon Plateau