Phra That Si Song Rak Is the most important sanctuary of Loei province. The white bricks have a square base of 10.89 meters wide and 19.19 meters high, built in the land of the great emperor the emperor of Ayutthaya and King Chai Chettha Thirat, the ruler of Sri Satanak Nout. (Vientiane) as a witness of love, unity, faith, friendship And is the boundary point of two eyes
The grounds that this pagoda was built In those days, Burma had a strong king in the war. Is the Teng Shevi and King Bureengnong has invaded Ayutthaya and Krungsri Satanakut, the Great Emperor and King Chai Chettha. Therefore made a solemn oath to join the battle in Burma and to commemorate diplomatic relations Therefore jointly build a pagoda to witness the name "Phra That Si Song Rak"