Champasak (or Champassak, Champasack - Lao: ຈຳປາສັກ) is a province in southwestern Laos, near the borders with Thailand and Cambodia. It is one of the three principalities that succeeded the Lao kingdom of Lan Xang. Population: 500,994 (2001 estimate). The river Mekong flows through the province (...) (from Wikipedia)