The Nile River, in Africa, is the longest river in the world.Nile River, the chief river of Africa and the longest in the world. Measured from its remote source, the Nile River is some 4,100 miles (6,600 km) long. The river system drains parts of 10 countries, from Tanzania northward to Egypt. It is the only major river that rises in the equatorial tropics and flows through desert. For centuries, millions of North Africans have depended on the water of the Nile for their crops.
