Congo River Congo River The great Congo River (also spelled Kongo River and known as the Zaire River; ; ; ) is the second longest river in Africa, shorter only than the Nile, as well as the second largest river in the world by discharge volume, following only the Amazon. It is also the world's deepest recorded river, with measured depths in excess of . The Congo-Lualaba-Chambeshi River system has an overall length of , 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
Mississippi River Lake Itasca, the Mississippi has a length of 2,320 miles (3,730 km). When measured from its longest stream source (most distant source from the sea), Brower's Spring in Montana, the source of the Missouri River, it has a length of 3,710 miles, making it the fourth longest river in the world after the Nile, Amazon, and Yangtze. When measured by the largest stream source (by water volume), the Ohio River, by extension the Allegheny River, would be the source, and the Mississippi would begin in Pennsylvania. The Mississippi River runs through or along 10 states, from Minnesota to Louisiana, and