Pibor River

Pibor River
Sobat River basin
Location of mouth in South Sudan
Location
Countries	South Sudan Ethiopia
Physical characteristics
Source	Pibor River
• location	Pibor Post, Greater Pibor
• coordinates	6°47′42″N 33°09′07″E / 6.7951°N 33.1519°E / 6.7951; 33.1519
• elevation	418 m (1,371 ft)
Mouth	Sobat River
• location	Ajungmir, Jonglei
• coordinates	8°26′01″N 33°13′07″E / 8.4337°N 33.2185°E / 8.4337; 33.2185
• elevation	404 m (1,325 ft)
Length	320 km (200 mi)
Basin size	10,000 km2 (3,900 sq mi)
Discharge
• average	98 m3/s (3,500 cu ft/s)
Basin features
Progression	Sobat River → White Nile → Nile → Mediterranean Sea

The Pibor River (also called the River Pibor^[1]) is a river in eastern South Sudan, which defines part of South Sudan's border with Ethiopia. From its source near Pibor Post it flows north for about 320 kilometres (200 mi), joining the Baro River to form the Sobat River, which is a tributary of the White Nile.^[2]

The Pibor and its tributaries drain a watershed 10,000 km² (3,900 sq mi) in size. The river's mean annual discharge at its mouth is 98 m³/s (3,460 ft³/s).^[3]

Course

The Pibor River is formed by various streams that come together at Pibor Post, a colonial era outpost built in 1912 and originally called

The Pibor, Baro, Gilo, and Akobo rivers all drain the Ethiopian Highlands. The Baro River is by far the largest, contributing 83% of the total water flowing into the Sobat River. During the rainy season, between June and October, the Baro River alone contributes about 10% of the Nile's water at Aswan, Egypt. In contrast, these rivers have very low flow during the dry season.^[4]

History

The boundary between

• List of rivers of South Sudan
• List of rivers of Ethiopia

References