ganges watershed the ganges is a watershed it is more or less circular it is isn't really belt shaped there are hundreds of rivers involved mcdogm ganges and yarlung zangbo the ganges meets the tibet river near dhaka it is known as the brahmaputra tibet's civilization extends north to the mongol who are tibetan buddhists it is a double river system as the ganges dominates south asian thought this double body of water could be said to extend from the indian ocean to lake baikal and farther north given the mongol dominination of everything from hokkaido to hungary this page is much bigger than a geography page mcdogm