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 base of Mount Kikizi. The Kagera River, which flows into Lake Victoria near the Tanzanian town of Bukoba, is the longest feeder river for Lake Victoria, although sources do not agree on which is the longest tributary of the Kagera, and hence the most distant source of the Nile itself. The source of the Nile can be considered to be either the Ruvyironza, which emerges in Bururi Province, Burundi, near Bukirasaz or the Nyabarongo, which flows from Nyungwe Forest in Rwanda. These two feeder rivers meet near Rusumo Falls on the border between Rwanda an Tanzania. These waterfalls are known