The Ubol Ratana Dam Phony Neeb Dam is a multi-purpose dam located in tambon Kok-soong,Ubolratana District,approximately 50 km.north of khon kaen,khon kaen Province,Thailand. It was the first hydroelectric power project developed in the Thailand's northeastern area of Isan.the dam impounds the Nam Phong,a tributary of the Mekong River. The dam was given its current name by Royal permission in 1966,in honour of Thai princess Ubolratana Rajakanya.the