Most of the area consists of not much complicated mountain range such as Khaokaw Mountain Range, Tabard Mountain, Tachoat Mountain and Kampang Mountain. At the ridge of the mountains, 100-836 meters above sea level, is the border of Thai and Cambodia. The highest peak is Khaotabath Mountain Peak 836 meters above sea levels. The area is the source of canals such as Klong louk, Klong kaew, Klong hinpleang, Klong lue, Klong kajai, Klong malagor etc. Water in all of these canals flows to Klong sator and to the sea.