Source Wikipedia
Sikhoraphum is a district (amphoe) in the central part of Surin Province, northeastern Thailand.
Neighboring districts are (from the north clockwise) Sanom and Samrong Thap of Surin Province, Prang Ku of Sisaket Province, Si Narong, Lamduan, Mueang Surin, Khwao Sinarin and Chom Phra of Surin again.
The town was significant in ancient times during the Khmer civilisation.
The district is subdivided into 15 subdistricts (tambon), which are further subdivided into 226 villages (muban). Ra Ngaeng is a township (thesaban tambon) which covers parts of tambon Ra Ngaeng. There are further 15 Tambon administrative organizations (TAO).