The sacred chedi of Phra That Phanom (also spelled Pratat Phanom) is famous as the oldest in the Northeastern part of Thailand. It is located in the compound of Wat Phratat Phanom Waramahawihan, 52 kilometers south of Nakhon Phanom Province.
This small city was once the center of the glorious Sri Kotrabun Kingdom (5th-10th Century) encompassing territories on both sides of the Mekong river. According to the Pratat Phanom legend, the name Sri Kotrabun (ศรีโคตม์บูร) means “The land of the Lord Buddha Kotama” to honor the pilgrimage visit of Lord Buddha Kotama in this area. It was also known by villager as Sri Kotrabong city (ศรีโคตรตะบอง) because the ruler of the Kingdom had a powerful staff as his weapon.