The large stone cliff is situated at Ban Khok Klang, Tambon Pha Nam Yoi. It borders Nong Sung district of Mukdahan province and Kuchi Narai district of Kalasin province. The total area is about 20,000 rai. It covers a forest with wide varieties of hardwood trees and is home to various kinds of wild animals such as boar, barking deer, deer, red junglefowl, etc. Pha Nam Yoi rises 200 metres from the ground level, and 380-500 metres above sea level. On the hill is situated Wat Pha Namthip Thep Prasit Wanaram, which covers an area of 2,500 rai. The temple was built by Phra Achan Si Maha Wiro, a follower of Phra Achan Man Phurithat. The temple houses Phra Mahachedi Chai Mongkhon, one of Thailand’s largest chedis that was designed by the Fine Arts Department. The white chedi is embellished with golden motifs, and surrounded by smaller chedis at the eight directions. The large chedi is 101 metres wide, 101 metres long, and 101 metres high situated on a piece of land with an area of 101 rai. It houses the relics of the Lord Buddha and is beautifully decorated with a mixture of an ancient and contemporary-style of art. This Phra Mahachedi Chai Mongkhon is situated in the compound of Wat Pha Namthip Thep Prasit Wanaram.