Prasat Wat Sa Kamphaeng Yai is the largest and best-preserved Khmer temple complex in Si Sa Ket. It’s main structure features three stupas on the same base made of brick and sandstone. It is thought that the structure was erected around the 10th Century during the reign of King Suriyaworaman, one of the great Khmer rulers. It was originally a shrine dedicated to Shiva, it was then later converted to a Mahayana Buddhist temple in the 13th Century.
Wat Sa Kamphaeng Yai is just two Kilometers away from the Uthumphon Phisai district office, is located on a high slope on the edge of the Ban Sa Kamphaeng village.