Rainfall River Basin Maps

About River Basins

A river basin is an area of land that is drained by a series of streams and rivers coming together and feeding into a larger river which ultimately flows into the ocean.

Basins are separated from each other by high ground, sometimes called watersheds.

Here we show the 18 major river basins of the world.

Click on a basin to see how rainfall has changed since 1900.

Congo River Basin

Congo River Basin

Nile

Nile River Basin

Niger

Niger River Basin

Amazon

Amazon River Basin

Mississippi

Mississippi River Basin

Rhine

Rhine River Basin

Danube

Danube River Basin

Mackenzie

Mackenzie River Basin

Volga

Volga River Basin

Parana

Parana River Basin

Orange

Orange River Basin

Lena

Lena River Basin

Indus

Indus River Basin

Ganges

Ganges Brahmaputra River Basin

Mekong

Mekong River Basin

Huang He

Huang He River Basin

Chang Jiang

Chang Jiang River Basin

Murray Darling

Murray Darling River Basin

Rainfall Maps