The Park boasts a variety of nationally important plants and wild animals, and its tranquility provides an ideal escape to enjoy untouched wilderness and natural beauty. It covers the areas of Samoeng, Hang Dong, Mae Wang, and San Pha Tong, with an approximate area of 484 km2 (302,500 rai). The geographical features of the park consist of high igneous and limestone mountains. Yod Khun Thian is the highest peak, rising to an altitude of 1,550 m. In the area, there are virgin arid, evergreen pine, and mixed forests. Op Khan is the source of many rivers and gullies flowing into the Mae Wang, Win and Khan Rivers.
