The park covers an area of 52,300 rai ~ 84 square kilometres (32 sq mi)[1] of forested mountains.
[2] North of the national park is the larger Khao Ang Rue Nai Wildlife Sanctuary.
Most of the mountain ridge is of moderate slope, reaching about 1,000 metres, but some hillside areas are quite steep.
Due to the close proximity to the much larger wildlife protection of Khao Ang Rue Nai Wildlife Sanctuary, the relatively small national park presents some larger and rare species that can only thrive in huge wilderness areas.
Of special note are Asian fairy-bluebird, Long-tailed broadbill, Great hornbill, Wreathed hornbill, Thick-billed pigeon, Mountain imperial pigeon, Blue pitta, Blue whistling thrush and Sulphur-breasted warbler.