Loange River
The Loange River (or Luangué, Luange) is a tributary of the Kasai River. Originating in Angola, the river flows north into the Democratic Republic of the Congo, through the eastern part of Kwango. The river then continues north along the boundary between Kwilu and Kasai provinces to its mouth on the Kasai.

Landscape 

In the triple border area of Kwilu, Kwango and Kasai, the Lwange river forms a terraced landscape in the loamy soil.

References

Rivers of Angola
Rivers of the Democratic Republic of the Congo
Kwango
Kwilu Province
Kasaï Province
Kasai River
International rivers of Africa