bolaven plateau, laos

laos bolaven plateau champasak paksong district elevated region southern located province though edges salavan sekong attapeu provinces annamite range runs laos39aph39 eastern border vietnam mekong river west 15°n 106°e plateau39aph39s elevation ranges approximately 000 350 metres 280 430 sea level crossed rivers scenic waterfalls name laven ethnic group historically dominated domestic migrations lao comprises percent population widespread interethnic marriage modifying composition bolc