Pibor River
The Pibor River (also called the River Pibor) 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.
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).
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 Fort Bruce. The Pibor flows north, receiving the Akobo River near Akobo. Continuing north the Pibor receives the Gilo River and Bela Rivers on the right, then joins the Baro River, forming the Sobat River.
Natural history
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.
Pibor
Pibor, also called Pibor Post, is a town in South Sudan.
Location
Pibor is located in Pibor County, Jonglei State, in eastern South Sudan, near the border with Ethiopia. It lies approximately 342 kilometres (213 mi), by road, northeast of Juba, the capital and largest city of the country.
Overview
Pibor Post is a colonial era outpost built in 1912 by the British and was originally called Fort Bruce. The town serves as the headquarters of Pibor County, one of the constituent counties of Jonglei State. The Pibor River, formed by the confluence of several smaller streams, begins its journey at Pibor. The river then flows north, receiving the Akobo River near Akobo. Eventually, after receiving the Gillo River and the Bela River, it joins the Baro River to form the Sobat River.
Transport
A major gravel road leads north to Akobo at the border with Ethiopia. Another major gravel road leads southwest out of Pibor to the town of Bor, the capital of Jonglei State. The town is also served by Pibor Airport.
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