Doi Luang, Phi Pan Nam Range north of Route 120 between Wang Nuea and the AH2 Highway. Doi Luang, Phi Pan Nam Range Doi Luang () is a 1,694 m high mountain in Thailand, part of the Phi Pan Nam Range. The mountain rises at the western end of Ban Tun Subdistrict, Mueang Phayao District, Phayao Province, near the point where the limit of this province meets with Lampang Province. With a height of 1,694 metres it is the highest point of the Phi Pan Nam Range. There are a number of lesser mountains with the name "Doi Luang" throughout the same range. Its summit is
Doi Inthanon at Doi Luang, which was then renamed in his honour. Today, the summit of Doi Inthanon is a popular tourist destination for both foreign and Thai tourists, with a peak of 12,000 visitors visiting the summit on New Year's Day. In addition to a range of tourist facilities on the summit, there is also a Royal Thai Air Force weather radar station at the summit and the Thai National Observatory (TNO) at km44. Doi Inthanon is the highest peak of the Inthanon Range () of the Thanon Thong Chai Range, a subrange of the Shan Hills in the Thai highlands