Salween

Salween, river, southeastern Asia. The river rises in Tibet Autonomous Region in China, where it is also known as Nu Jiang, and runs south through Yunnan Province. After entering northeastern Myanmar (formerly known as Burma) the Salween flows generally south, and then forms part of the border between Myanmar and Thailand before emptying into the Gulf of Martaban at the port of Moulmein. The Salween River is 2,800 km (1,740 mi) long, but because of numerous rapids it is only navigable for 120 km (74 mi) above its mouth.