is located in Tambon Ban Du. The temple was built in the period of Yonok Chaiyaburi Si Chiang Saen. During the reign of Phrachao Phangkharat, the 24th king of the Yonok Dynasty, a senior monk named Phra Phutthakhosachan from Koson district in Suthammawadi city brought 16 pieces of the Lord Buddha’s relics from then Ceylon and gave them to the king. King Phangkharat had a royal command to divide the relics into 3 portions to be enshrined separately at Phrathat (pagoda) Chom Thong, Phrathat Chom Kitti, and Phrathat Doi Ban Yang. In 1947, Phra Khruba Khamla Sangwaro presided over the renovation of Phrathat Doi Ban Yang. A new pagoda was built to cover the old one, together with a Wihan, teakwood Buddha image hall on stilts. The temple name was later changed to Phrathat Chom Sak.