Ruak River

Ruak River
Confluence of Ruak River with Mekong River, view from Wat Phra That Doi Pu Khao in Ban Sop Ruak
Native nameแม่น้ำรวก (Thai)
Location
CountryMyanmar and Thailand
Physical characteristics
Source 
  locationDaen Lao Range, Shan Hills
Mouth 
  location
Mekong at Ban Sop Ruak, Chiang Saen District
  coordinates
20°21′16″N 100°4′57″E / 20.35444°N 100.08250°E / 20.35444; 100.08250
  elevation
366 m (1,201 ft)
Basin features
Tributaries 
  rightMae Sai River

The Ruak River (Thai: แม่น้ำรวก, RTGS: Maenam Ruak, pronounced [mɛ̂ː.náːm rûak]; Northern Thai: น้ำแม่ฮวก, pronounced [nâːm mɛ̂ː hûak]) is a right hand tributary of the Mekong. The mouth of the Ruak river is at the Thai-Burma border opposite Laos, a spot known as the "Golden Triangle", a popular tourist destination.