Phra That Kong Khao Noi, also known locally as “That Tat Thong,” is one of the most important ancient monuments in Yasothon Province. It is located in Ban Tat Thong, Tat Thong Subdistrict, Mueang Yasothon District. Historians believe the stupa was constructed around the 23rd–25th Buddhist centuries, during the late Ayutthaya Period continuing into the early Rattanakosin Era. Its architectural style reflects strong influences from the Lan Chang Kingdom, whose artistic traditions once spread widely across northeastern Thailand.The main structure is a brick-and-mortar chedi built on a square indented base (Yom Mum Mai Sip Song style) and stands approximately 10 meters high. Its overall appearance resembles Phra That Phanom, though on a smaller scale. The upper section features a lotus-shaped spire combining traditional Isan and Lan Chang artistic elements. Originally covered with smooth plaster, parts of the exterior have naturally eroded over time, revealing the ancient brickwork underneath and showcasing historical construction techniques remarkably well.Surrounding the stupa are open rice fields and a peaceful rural landscape that beautifully reflects the traditional lifestyle of the Isan countryside. Within the temple grounds are Buddha images and small shrines where local villagers come to pay respect. Visitors can also see sculptures depicting scenes from the famous legend of “Kong Khao Noi Kills His Mother,” helping explain the origin and significance of this sacred site
.The legend of Kong Khao Noi Kills His Mother is considered one of the most famous folk tales in northeastern Thailand. According to the story, a young farmer named Thong worked in the fields from early morning and became extremely hungry. While waiting for his mother to bring him food, he grew impatient. When she finally arrived carrying only a small “kong khao noi” a small bamboo rice container, he mistakenly believed there was not enough food for him. In a moment of anger and loss of self-control, he accidentally killed his mother.Afterward, when he opened the rice container to eat, he discovered that the sticky rice inside was actually plentiful and seemed endless because his mother had packed it tightly to ensure he would be full. Realizing the truth, Thong was overwhelmed with guilt and sorrow. To atone for his sin and dedicate merit to his mother, he built Phra That Kong Khao Noi.
Over time, the story became an important moral teaching for the people of Isan, emphasizing gratitude, filial piety, and the importance of controlling one’s emotions. The legend has been adapted into poems, folk songs, school literature, and traditional Mor Lam performances, making the site not only a religious monument but also a cultural and spiritual symbol of Yasothon.Today, travelers visit Phra That Kong Khao Noi to experience the serene countryside atmosphere, admire the ancient architecture, and learn about one of Thailand’s most meaningful folk legends. The best times to visit are during the early morning or late afternoon, when soft sunlight illuminates the stupa beautifully against the surrounding rice fields and open sky. Visitors can also continue their journey to nearby attractions such as Wiman Phaya Thaen and the Phaya Khan Khak Museum, two major landmarks of Yasothon Province.