Not only because of the park located in the land of Ta Bor-Huay Yai Forest (in Tambon Huay Yai, Tambon Ban Coke and Tambon Ban na, Muang Petchabun District, Ptchabun Province) which many significant and valuable animal and plant species are exist, but also this park composes of beautiful natural scenery of mountains and waterfalls, so The Royal Forest Department declared Tad Hmok National Park, 181,250 rais area, on October 30, 1998.
Topography
The park is mountainous with many high mountains and its provides an important watershed for the Pa Sak and Chi Rivers including Nam Nao National Park. In the past, Tat Mok National Park is a concession forest of the Thai Plywood Company. But this forest is still fertile area which is part of Nam Nao National Park.
Climate
Northern End : Nam Nao National Park and Phu Pha Daeng Wildlife Sanctuary, Petchabun Province
Southern End : Ta Bor - Huay Yai Wildlife Sanctuary, Petchabun Province
Eastern End : Phu Kiew Wildlife Sanctuary, Petchabun Province
Western End : Maung District, Petchabun Province.
Flora and Fauna
The Park consist of hill evergreen forest, dry evergreen forest, dipterocarp forest and mixed deciduous forest from which are the important sources of economic timber species in thailand such as Tectona grandis, Dipterocarp, Pterocapus macrocapus and Bamboo etc. Wildlife species found here are example: monkey, barking deer, wildhog, including birds diversity.