Lost Underground Rivers
Cities like London and New York City have a long history of paving over rivers.
Cities like London and New York City have a long history of paving over rivers.
The North American Continental Divide separates the watersheds that flow into the Pacific Ocean and those that flow into the Gulf of Mexico and the Atlantic, Caribbean, and Arctic Oceans.
The protective salt marshes that ring Lake Natron in Tanzania have nurtured the highest concentrations of lesser and greater flamingos in East Africa.
The Amazon River is one of the world’s longest and largest rivers. Here are some interesting geographical facts about the Amazon River.
The Mississippi watershed is the largest drainage basin in North America.