Congo River lies in the northern province Haut-Uele of DR Congo: There are at least four bridges on the Lulua river in the provice of Kasai of DR Congo: Angola - DR Congo border: Lower Congo (Matadi - Pioka): DR Congo - Congo Republic border: Upper Congo (Irebu - Ubundu): On the minor tributaries of the great Congo there are noumerous river crossings, which cannot be included here. Congo River The great Congo River (also spelled Kongo River and known as the Zaire River; ; ; ) is the second longest river in Africa, shorter only than the Nile, as well as
Sobat River Sobat River The Sobat River is a river of the Greater Upper Nile region in northeastern South Sudan, Africa. It is the most southerly of the great eastern tributaries of the White Nile, before the confluence with the Blue Nile. The Sobat River is formed by the confluence of the west-flowing Baro River and the north-flowing Pibor River, on the border with Ethiopia. The river enters the White Nile at Doleib Hill, near the city of Malakal in Upper Nile State. When in flood the Sobat River produces an enormous discharge carrying a white sediment, which gives the White Nile