Major Bodies of Water in South Sudan

South Sudan's geography is defined by the Nile River system and vast seasonal wetlands. Here are the key water bodies:

Major Rivers

• White Nile (Bahr al-Jabal) – The primary Nile branch flowing north through the country; lifeline for agriculture, transport, and wildlife.
• Bahr el Ghazal – Major western tributary of the White Nile, draining a vast basin.
• Sobat River – Important eastern tributary originating in Ethiopia, joining the White Nile near Malakal.
• Pibor River – Forms part of the border with Ethiopia, feeds into the Sobat.

Significant Lakes & Wetlands

• Sudd Swamp – One of the world's largest freshwater wetlands (up to 130,000 km² in wet season), a UNESCO Ramsar site and critical ecosystem.
• Machar Marshes – Extensive seasonal wetlands in the northeast, fed by the Sobat.
• Tonga Marshes & Sobat Marshes – Additional floodplain systems supporting biodiversity and pastoralism.

Lakes Within South Sudan

Note: Lakes Victoria, Turkana, Edward, Albert, Kyoga, Natron, Magadi, Kivu, Tanganyika, and Malawi are NOT in South Sudan; they lie in neighboring countries.

Actual South Sudanese lakes include Lake No (where Bahr el Ghazal meets the White Nile), Lake Ambadi, and numerous seasonal floodplain lakes.

Canals

• Jonglei Canal – A massive, unfinished drainage project (started 1970s) intended to bypass the Sudd and increase Nile flow to Egypt. Construction halted in 1984 due to war; remains a contentious environmental issue.