Ubon Ratchathani Province covers a total area of 15,744.85
square kilometers, with Amnat Charoen Province to the north, the
Banthat Mountain Range along the4 border of the Kingdom of
Cambodia to the south, the Mekhong River and Lao People’s
Democratic Republic to the east, and Yathothon and Si Sa Ket
Provinces to the west. Ubon Ratchathani is divided into 19
Amphoes and 6 King Amphoes, namely: Amphoe Muang, Amphoe Warin
Chamrap, Amphoe Det Udom, Amphoe Buntharik, Amphoe Na Chaluai,
Amphoe Nam Yun, Amphoe Khong Chiam, Amphoe Phibun Mangsahan,
Amphoe Si Muang Mai, Amphoe Trakan Phutphon, Amphoe Khemarat,
Amphoe Muang Samsip, Amphoe Khuang Nai, Amphoe Kut Khaopun,
Amphoe Pho Sai, Amphoe Tan Sum, Amphoe Samrong, Amphoe
Sirindhorn King Amphoe Don Mot Daeng, King Amphoe Thung Si Udom,
King Amphoe Na Yia, King Amphoe No Tan, King Amphoe Lao Sua kok,
and King Amphoe Sawang Wirawong. The Kha and the Suai, two local
tribes, had moved from Si Sattanakanahut to this area before the
Rattanakosin Period. During the reign o