Akobo River

From its source in the Ethiopian Highlands near Mizan Teferi it flows west for 434 kilometres (270 mi) to join the Pibor River.

This boundary was consummated in the Anglo-Ethiopian Treaty of 1902, resulting in an area in the Ethiopian Gambela Region called the Baro Salient.

[5] The Baro Salient is more closely connected to South Sudan than Ethiopia, both in terms of natural features and people.

The Baro Salient was used as a sanctuary by Sudanese insurgents during the country's long civil wars.

In 1939, engineers of Companies Mineralia Ethiopia (COMINA) carried out exploration of the Akobo and its tributaries.