Doi Ian quite a distance over the plains near Thoeng town. Doi Ian Doi Ian () is a mountain in Thailand, part of the Phi Pan Nam Range, at the southeastern end of Chiang Rai Province limit near the point where the limit of this province meets with the northern end of Phayao Province, nine km from the border with Laos. This mountain rises in Ngao Subdistrict, Thoeng District. Its summit is 12 km east of Thoeng, near Ngao east of the road going from it to Wiang Kaen town. With a height of 1,174 metres Doi Ian is a conspicuous mountain
Wat Phra That Doi Suthep placed by the king on the back of a white elephant which was released into the jungle. The elephant is said to have climbed up Doi Suthep, at that time called Doi Aoy Chang ("Sugar Elephant Mountain"), stopped, trumpeted three times, then dropped dead. This was interpreted as an omen. King Nu Naone immediately ordered the construction of a temple at the site. The name of the Temple (Wat Phra That Doi Suthep) actually explains what the temple has. "Phra" entails of an honorific Buddha image, and "That" means a relic. Combining the two tells that there is a relic