Because of the various tributaries and reservoirs, it is difficult to measure the precise lengths of the rivers of the world. Some of the major rivers of the world include the Nile, Amazon, Yangtze, and Yellow Rivers. Other major rivers are the Parana, the Mississippi-Missouri river system, the Niger, the Volga, and the Danube.
- Yellow River - Also located in China, the Yellow River is the second longest river in the country.
- Mississippi - Missouri - The longest river system in the United States, the Mississippi-Missouri system is considered the fourth longest river in the world. The Mississippi-Missouri system drains thirty-one of the fifty states. The system consists of both the Mississippi and Missouri Rivers, which merge together near St. Louis Missouri.
- Parana - In South America, the Parana River runs 3,030 miles through Brazil, Paraguay, and Argentina, before joining with the Iguazu River. The Parana River is formed from both the Paranaiba and Grande Rivers.
Last Updated On : June 04, 2013