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The Lualaba River flows entirely within the eastern Democratic Republic of Congo. It is the greatest river source (headstream) of the Congo River by volume of water. The Lualaba is long. Its headwaters are in the country's far southeastern corner near Musofi and Lubumbashi in Katanga Province, next to Zambia. The Chambeshi River is the longest river source (headstream) of the Congo. ==Geography== The origination of the Lualaba River is on the Katanga Plateau, at an elevation of above sea level. Its total course flows northward to end near Kisangani, where the name Congo River officially begins. From the Katanga Plateau it drops, with waterfalls and rapids marking the descent, to the Manika Plateau. As it descends through the upper Kamalondo Trough (Upemba Depression), in , near Nzilo Falls it is dammed for hydroelectric power at Nzilo Dam. At Bukama in Haut-Lomami District the river becomes navigable for about through a series of marshy lakes in the lower Upemba Depression, including Lake Upemba and Lake Kisale. Ankoro lies on the west bank of the Lualaba River, opposite its confluence with the Luvua River from the east. Some geographers call the combined river below this point the "Upper Congo". Below Kongolo, the river becomes unnavigable as it enters the narrow gorge of Portes d'Enfer (''Gates of Hell''). Between Kasongo and Kibombo, the river is navigable for about , before rapids make it unnavigable again at Kindu-Port-Empain. The Boyoma Falls (Stanley Falls) are made up of seven cataracts, over a stretch of of the river, between Ubundu and Kisangani. The river's end is marked after the seventh cataract, near Kisangani, where its name becomes the Congo River. ;Parks The Lualaba River serves as the northern and western boundary of Upemba National Park, protecting habitats on the Kibara Plateau in Katanga Province of the southeastern Democratic Republic of Congo. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lualaba River」の詳細全文を読む スポンサード リンク
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