Thanon Thong Chai Range of national parks and wildlife sanctuaries are located in the range. Thanon Thong Chai Range The Thanon Thong Chai Range (, , formerly Thanon Range; Burmese "Tanen Taunggyi") is a mountain range in northern Thailand. Its tallest peak is Doi Inthanon, the highest point in Thailand. Most of the range is located in Chiang Mai Province, with parts in Mae Hong Son and Lamphun Provinces. Geologically in the Thanon Thong Chai Range, as in the other southern subranges of the Shan Hills, layers of alluvium are superimposed on hard rock. Precambrian rocks are present in this range, but absent in
Doi Nang Non southwest of Pong Pha along the border with Myanmar. The mountain range is an unusual land feature when seen from certain angles as its silhouette takes the shape of a reclining woman with long hair. Its highest point is Doi Tung, which corresponds to the belly of the lady. There are a number of caves and underground water courses in the range area. In 1986 an eight km sector of the range which included the entrance to the main cave was declared the Tham Luang–Khun Nam Nang Non Forest Park. On 23 June 2018, a group of twelve boys aged