Largest island and the longest river on Earth

July 20, 2010 | In: Geography Facts

Largest island – Greenland, 839,999 square miles (2,175,600 square kilometers), seems to have been misnamed by Vikings hoping to attract settlers to a colony on the southern coast, which, to be fair, is green for a short time in summer.

Longest river – Africa’s Nile River, at 4,241 miles (6,825 kilometers) long, barely beats out the Amazon in South America (approximately 4,000 miles; 6,437 kilometers) as the world’s longest river. The Nile runs north—through Uganda, Sudan, and Egypt—into the Mediterranean Sea.

Largest river system – The Amazon wins hands down with a drainage basin of approximately 2.5 million square miles (6.7 million square kilometers), an area equal to three-fourths the contiguous United States. It also carries the greatest flow of water—around six million cubic feet per second, or one-fifth of all the river water in the world.