Africa's second-largest lake by area, it is also the second-deepest in the world, surpassed only by Lake Baikal. Due to its extreme depth (over 4,700 feet), Lake Tanganyika contains seven times as much water as Lake Victoria. A source of the Lualaba River, it is shared by Tanzania, the Democratic Republic of the Congo, Burundi, and Zambia. On its Tanzanian shore is the town of Ujiji, at which Henry Morton Stanley 'found' Dr. David Livingstone in 1871.