Hill 350 is an important strategic point located along the Phanom Dong Rak mountain range in Bak Dai Subdistrict, Phanom Dong Rak District, Surin Province.

Hill 350 is an important strategic point located along the Phanom Dong Rak mountain range in Bak Dai Subdistrict, Phanom Dong Rak District, Surin Province. It is situated approximately 300 meters west of Prasat Ta Khwai and is considered a high-security area where clashes have occurred along the Thai–Cambodian border.