Donga River

The Donga River is a river in Nigeria and Cameroon. The river arises from the Mambilla Plateau in southeastern Nigeria, forms part of the international border between Nigeria and Cameroon, and flows northwest to eventually merge with the Benue River in Nigeria. The Donga watershed is 20,000 square kilometres (7,700 sq mi) in area. At its peak, near the Benue the river delivers 1,800 cubic metres (64,000 cu ft) of water per second.

In Taraba State, Nigeria, there are three forest reserves, Baissa, Amboi and Bissaula River, in the Donga river basin. They lie on the slopes and at the foot of the Mambilla Plateau, south-west of Gashaka Gumti National Park.