Western Congolian forest-savanna mosaic

The forest-savanna mosaic covers a region of dissected plateaus lying between the Congo Basin on the east and the Atlantic Ocean to the west. The lower Congo River passes through the ecoregion.[2]

The ecoregion is bounded on the northwest by the humid Atlantic Equatorial coastal forests, which extend north from the Congo River along the Atlantic coast. The Northwestern Congolian lowland forests lie to the north and northeast. The Southern Congolian forest-savanna mosaic bounds the ecoregion on the east, south of the Congo River. The Angolan miombo woodlands lie to the southeast and south. The Angolan Scarp savanna and woodlands lies to the southwest along the Atlantic coast, extending south from the Congo River's mouth.

The cities of Kinshasa and Brazzaville, capitals of the two Congo republics, are in the ecoregion, located opposite one another on the Congo River. Other cities in the ecoregion include Matadi and Cabinda.

The ecoregion is a mosaic of wooded grassland with patches of forest. It includes gallery forests along rivers, and areas of dry evergreen forest on the Bateke Plateau in the Republic of the Congo.[2]