Doi Luang District Doi Luang District Doi Luang (, ) is a district ("amphoe") in the northern part of Chiang Rai Province, northern Thailand. The area of Doi Luang was separated from Mae Chan District and established as a minor district ("king amphoe") on 15 July 1996. On 15 May 2007, all 81 minor districts were upgraded to full districts. With publication in the "Royal Gazette" on 24 August, the upgrade became official. Neighboring districts are (from the north clockwise) Chiang Saen, Chiang Khong, Wiang Chiang Rung, and Mae Chan. The district is divided into three sub-districts ("tambon"), which are further subdivided into
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