Doi Chiang Dao
Doi Chiang Dao (, ), also known as Doi Luang Chiang Dao (, ), is a high mountain in Chiang Dao District of Chiang Mai Province, Thailand. It is one of the highest peaks of the Daen Lao Range on the Thai side of the border. Doi Chiang Dao is part of a limestone massif located west-northwest of Chiang Dao town and less than south of the border with Myanmar at the eastern end of the Thai highlands. This mountain is part of Chiang Dao Wildlife Sanctuary, south of Pha Daeng National Park. Doi Chiang Dao is one of the  most visited birdwatching sites in Thailand with over 300 species of birds, including rare species such as the giant nuthatch and Hume's pheasant. In 2021, UNESCO declared Doi Chiang Dao to be biosphere reserve, counted as the fifth site in Thailand (after Sakaerat, Hauy Tak Teak, Mae Sa-Kog Ma, Ranong).