Phu Sa Dokbua National Park

144,375 rai or 231 square kilometers. The general topography is a complex mountain range of many mountain ranges. These mountain ranges are part of a large mountain range called Phu Phan Mountain Range, stretching from the northwest to the southeast, dividing the Khorat Plateau into two basins: the northern part is the Sakon Nakhon Basin, and the southern part is the large Khorat-Ubon Basin. The characteristics of the rocks and changes in the earth's crust in the past within Phu Sa Dok Bua National Park have created points of interest for both geological and geographical studies, especially the erosion of sandstone towers, resulting in cliffs, potholes or rock basins on the mountaintops, and the formation of rock cracks (Faults). In addition to becoming a tourist attraction, this area is also a place to study natural changes.