Nam Nao one of Thailand most beautiful Park covers an area within Amphur Mueang Lom Sak and Lom Kow in Phetchabun provice and Amphur Kornsan within Chaiyaphum province. The park Headquarters is in an unusual and fascinating landscape: deciduous forest dominated by tall pine trees.
The area is mountainous and its forests provide an important watershed for the surrounding districts. The Park covers in total an area of about 966 square Kilometres. The unusual and fascinating Park designated a National Park on the 4th May 1972