Doi Luang, Phi Pan Nam Range 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 in Doi Luang National Park, less than seven km to the
Thanon Thong Chai Range Thanon Thong Chai Range is the southernmost prolongation of the Shan Hills and it consists of two parallel ranges running southwards from the southwestern limits of the Daen Lao Range between rivers Yuam and Ping. The eastern range is also known as Inthanon Range (ทิวเขาอินทนนท์). Often the Dawna Range further west and south is included as the western part of the Thanon Thong Chai Range. There are also some geographers who include the Thanon Thong Chai as a subrange of the Daen Lao Range. Doi Inthanon, at 2,565 metres in the Inthanon Range, is one of the ultra prominent peaks