Thampetch-Thamthong located in the forest area of Chon Dua Mountain, in Moo 15 and Moo 17, Khao Chon Dua Village and Sra Kaew Village in Ta Klee Sub-district; and Nongpikul Village, Tak Fah District, Nakorn Sawan Province, covered the area of 3,000 rais approximately. The Royal Forest Department declared this forest park on Department on January 10, 1998.

Topography
Chon Dua Mountain is 100-375 metrs above the average sea level. It’s filled with several species of flora and fauna. It’s the watershed area of Hin Plern Stream, Nam Ko Stream and Dinsopong Stream. Its characteristic is small mountain where is consisting of limestone, marble and granite; located in the middle of the town. On the top of the mountain is the hills serrated with plateau which is accessible by feet. Southern foothill connected to Paholyothin road at the milestone no. 247-248, only 200 metres long. Inside the Chon Dua Mountain consisted of 70 big and small mountains with walking path connected to each other.

Flora and Fauna
It’s Mixed Deciduous Forest and Dry Evergreen Forest. The mountain area consists of various flora species and economic trees i.e. Afzelia xylocarpa, Lagerstroemia sp., Hydnocarpus sp., SOMPONG, Ptercymbium javanicum, Celtis tetranda, Baccaurea sp., and Magifera sp. Ground plants are Bambusa arundinacea and various herbal plants such as Myristica genus, Euphorbiaceae genus and Bridelia stipularis.
Fauna found in Chon Dua Mountain range where is the Mixed Deciduous Forest and Dry Evergreen Forest consist of tiger, bear, barking deer, serow, wild monkey, cobra, jungle fowl and civet cat.