2. The Congo: The Congo River is the deepest river in the world, and the second longest in Africa. It flows westward through central Africa for over 4,700 km (2,900 mi). The Congo is a major source of hydroelectric power, and its basin is home to a rich diversity of plant and animal life.
3. The Niger: The Niger River is the third longest river in Africa, flowing for over 4,100 km (2,500 mi) through western Africa. The Niger is a vital transportation route, and its basin is home to a variety of agricultural activities.