River, Myanmar (Burma).
It flows 1,350 mi (2,170 km) across the centre of the country and empties into the Bay of Bengal . The country's most important commercial waterway, it is formed by the confluence of the Nmai and the Mali rivers; in the central dry zone it is joined by its major tributary, the Chindwin River . Chief ports are Mandalay , Chauk, Prome (Pyè), and Henzada.