Geography of Africa outer ranges. The main drainage of the continent is to the north and west, or towards the basin of the Atlantic Ocean. To the main African rivers belong: Nile (the longest river of Africa), Congo (river with the highest water discharge on the continent) and the Niger, which flows half of its length through the arid areas. The largest lakes are the following: Lake Victoria (Lake Ukerewe), Lake Chad, in the centre of the continent, Lake Tanganyika, lying between the Democratic Republic of Congo, Burundi, Tanzania and Zambia. There is also the considerably large Lake Malawi stretching along the eastern
White Nile built. A ferry connects the roads between Adjumani and Moyo, and navigation of the river is otherwise done by small boat or canoe. From the point at which the river enters South Sudan from Uganda the river goes under the name of "Mountain Nile". From Lake No in South Sudan the river becomes the "White Nile" in its strictest sense, and so continues northwards into Sudan where it ends at its confluence with the Blue Nile. From Nimule in South Sudan, close to the border with Uganda, the river becomes known as the "Mountain Nile" or "Baḥr al-Jabal" (also "Baḥr