The Niger River's Course: Flowing Through Guinea, Mali, Niger, Benin, and Nigeria

The Niger River, Africa's third-longest river (4,180 km / 2,600 mi), traces a great arc across West Africa. Its course defines the region's geography, history, and economies.

Countries Traversed

1. Guinea (Source): Rises in the Guinea Highlands (Fouta Djallon) near the Sierra Leone border. Headwaters: Tembi, Bafing, Bakoye rivers.
2. Mali: Flows northeast through the Sahel, forming the vast **Inland Niger Delta** (Macina)—a 30,000 km² seasonal wetland critical for rice, fishing, and pastoralism. Passes Timbuktu, Gao.
3. Niger: Forms the border with Benin briefly; Niamey, the capital, sits on its banks.
4. Benin: Short stretch forming border; contributes to Niger River Basin Authority cooperation.
5. Nigeria: Enters at Jebba; receives major tributary Benue River at Lokoja. Forms the massive **Niger Delta** (70,000 km²)—Africa's largest wetland, oil-rich, biodiversity hotspot. Empties into Gulf of Guinea (Atlantic).

Significance

• Water source for 100+ million people.
• Transport corridor (seasonal navigation).
• Hydropower (Kainji, Jebba, Shiroro dams).
• Irrigation for agriculture (Office du Niger, Mali; Nigerian schemes).
• Cultural lifeline for diverse ethnic groups (Bambara, Bozo, Songhai, Nupe, Ijaw, etc.).

The Niger Basin Authority (9 riparian states) coordinates management. Climate change, population growth, and upstream dams challenge sustainable sharing.