The Pak Mun Dam is a barrage dam and run-of-the-river hydroelectric plant 5.5 km west of the confluence of the Mun and Mekong Rivers in Khong Chiam District, Ubon Ratchathani Province, Thailand. It was constructed by the Electricity Generating Authority of Thailand (EGAT) with support from the World Bank at a total cost of US$240 million, and completed in 1994.
Main wall of the Pak Mun Dam
Khong Chiam is the easternmost district (amphoe) of Ubon Ratchathani province of Thailand.
Pha Taem National Park, a national park in the district
Mun River mouth, Khong Chiam