Dan Sao Kuoy or Sao Kuoy Stone Field is located on Wat Phuphan Udomtham, Tambon Nakhae. Most areas of Dan Sao Kuoy cover Phuphan Mountains. “Dan” in Isan dialect means field. That’s why Dan Sao Kuoy has flat-stone field and sparsely mixed deciduous forest. When climbing up to the stone field, you can distinctly see the top of Phatat Phanom Stupa.In Wat Phuphan Udomtham, there are replicas of seven stupas in Nakhon Panom Province which the tourists can pray along the road to Dan Sao Kuoy. Furthermore, the temple provides dhamma retreat.