Phu Khieo Wildlife Reserve
 
   This wildlife reserve is on the same way as Chulabhorn Dam between Km. 24-25. It has an area of 1,560 square kilometres. The geography consists of a sandstone mountain range with high cliffs. The verdant jungle is the watershed of an important river of the Northeast called the Chi and is home to an abundance of wild animals, as well as over 350 bird species. The reserve is ideal for studying flora and fauna. The most interesting spot is Thung Kamang, a grass field that is the grazing ground for many animals. The reserve is open only to persons wishing to study nature. Permission must be obtained from the reserve chief by writing to P.O. Box 3, Chum Phae Post Office, Khon Kaen or contact the Wildlife Reserve Section, Royal Forestry Department, Bang Khen, Bangkok.