Source Wikipedia
Prasat is a district (amphoe) in the southern part of Surin Province, northeastern Thailand.
Neighboring districts are (from the north clockwise) Mueang Surin, Lamduan, Sangkha, Kap Choeng, and Phanom Dong Rak of Surin Province, Ban Kruat, Prakhon Chai, Phlapphla Chai, and Krasang of Buriram Province.
The area of the district was originally part of Mueang Surin District. It was split off as a separate district on 4 March 1938, consisting of the seven tambon: Kang Aen, Bakdai, Ta Bao, Prue, Thung Mon, Phlai, and Thamo.
Prasat District is divided into 18 sub-districts (tambon), which are further subdivided into 241 administrative villages (muban).