Lam Dom Noi
Lam Dom Noi (, ) is a tributary of the Mun River. It originates in the Dângrêk Mountains and flows northwards. The watercourse passes Buntharik district and is stopped by the Sirindhorn Dam in Chong Mek Subdistrict, Sirindhorn district. It is  long. The Sirindhorn reservoir is the biggest water resource of Ubon Ratchathani province. Dom Noi
Geography of Ubon Ratchathani province