Ubon Ratchathani (often shortened to Ubon, Thai: อุบลราชธานี) is one of the northeastern provinces (changwat) of Thailand, and the country's easternmost. Ubon is about 630 km (390 mi) from Bangkok.[1] Neighboring Provinces are (from west clockwise) Sisaket, Yasothon, and Amnat Charoen. To the north and east it borders Salavan and Champasak of Laos, to the south Preah Vihear of Cambodia.