Congo d Zaair

The Congo River (also spelled Kongo River and known as the Zaire River; French: (le) fleuve Congo/Zaïre; Portuguese: rio Congo/Zaire; Kongo: Nzâdi Kôngo) is the second longest river in Africa after the Nile and the second largest river in the world by discharge volume of water (after the Amazon), and the world's deepest river with measured depths in excess of 220 m (720 ft). The Congo-Chambeshi River has an overall length of 4,700 km (2,920 mi), which makes it the world's ninth-longest river. The Chambeshi is a tributary of the Lualaba River, and Lualaba is the name of the Congo River upstream of Boyoma Falls, extending for 1,800 km (1,120 mi). Measured along with the Lualaba, the Congo River has a total length of 4,370 km (2,715 mi). It is the only river to cross the equator twice. The Congo Basin has a total area of about 4,000,000 km2 (1,500,000 sq mi), or 13% of the entire African landmass.