Doi Tung Doi Tung Doi Tung (ดอยตุง) is a mountain in the Thai highlands of Chiang Rai Province, Thailand. While not the highest elevation of the province, the 1,389 m high Doi Tung rises steeply close to the Thailand-Myanmar border. It is the highest point of the Doi Nang Non, a subrange of the Daen Lao Range, in the area known as "Golden Triangle". Most of the bedrock of the mountain is limestone and granite. The vegetation below 1,000 m is mostly deciduous forest, and the vegetation above this height is evergreen. The population of Doi Tung is about 11,000 people, consisting
Doi Luang National Park District, should not be confused with Doi Luang, with an altitude of 1,694 m the highest mountain of the Phi Pan Nam Range, that is located about 30 km further south in the same mountain chain. The sources of the Wang and the Lao River are in this mountainous area. The park also has rugged rock formations and scenic waterfalls such as Namtok Pu Kaeng, Namtok Cham Pa Thong and Namtok Wang Kaew. Trees in the protected area include "Mesua ferrea", "Hopea odorata", "Toona ciliata", "Lagerstroemia tomentosa" and "Irvingia malayana". Animals in the park area include the Asian black bear,