The plateau is dissected by many rivers (notably the River Donga) leaving a complex geography of steep valleys separated by highlands (all of similar altitude). The Gang Peak, located in the northeastern corner of the Mambilla Plateau, on the Mambilla-Gashaka-Cameroon tri-point boundary zone, is Nigeria's loftiest landform.
The plateau is divided by numerous rivers (notably the Donga River) creating a intricate geographical layout of deep valleys separated by highlands (all at similar elevation). The Gang Peak, situated in the northeastern corner of the Mambilla Plateau, on the tri-border zone between Mambilla, Gashaka, and Cameroon, is Nigeria's highest natural landmark.