Phu Som Sang has a beautiful atmosphere. Currently, there are clergy and villagers together to restore it to be an important attraction of the district. It is located at Ban Kham Mak Lai, Moo 8, Nong Nok Tha Subdistrict, Khemmarat District, Ubon Ratchathani Province. In the east of Nong Nok Tha Subdistrict and is the border between Nong Nok Tha Subdistrict and Kham Pom Subdistrict with an area of ​​approximately 640,000 square meters. Within the Phu Som Sang area, there is a monastery located, which is the village temple. At present, the villagers have been developed to be ecotourism of Nong Nok Tha Subdistrict, in addition to being used as a place for religious ceremonies, there are also beautiful attractions and a wonderful basin on the top of the mountain, namely the Pu Sing Stone Basin. The main characteristic of this rock basin is a rock pool with water springing up throughout the year, with a depth of 30 meters, a width of about 10 meters. Most importantly, the water is very clear and the water is trapped in rock layers all year round. The villagers said that this stone basin is about 40 years old and it was discovered by Luang Pu Sing (the former abbot of the temple) who passed away. If you look at the surface, it looks like a normal puddle due to backwater. Villagers who come up to see the beauty of nature on the top of Phu Som Sang will use this basin for consumption or wash the body, but not drinking, especially during the rainy season, the water will be very clear. There is only one basin on the top of the mountain with water springing up throughout the year. For the atmosphere at the top of the mountain, if you describe the surrounding area, there will be large stone slabs lined around and the highlight is "Lan Hin Tang," which is characterized by a wide stone courtyard with a pattern surrounded by a layer of stone slabs like nature creates beauty. In addition, there are many rock formations that look like Pha Taem National Park or Pha Chana Dai. The route up to see the glamour can be reached on foot because there are stairs to walk up easily.