the Yangtze River, here known as the Jinsha Jiang (River of Golden Sands), drains the province's north. the Pearl River, with its source near Qujing, collects the waters from the east. the Mekong (Lancang), which flows from Tibet into the South China Sea forming the boundaries between Laos and Burma, between Laos and Thailand and through Laos, Cambodia and Vietnam the Red River (Yuan or Honghe) has its source in the mountains south of Dali and enters the South China Sea through Hanoi, Vietnam the Salween (Nujiang), which flows into the Gulf of Martaban and the Andaman Sea through Burma the Irrawaddy, which arises from the confluence of two rivers in Kachin State in Burma, has a few small tributaries in Yunnan's far west, such as the Dulongjiang and Taping River, and rivers in the prefecture of Dehong.