Doi Chiang Dao 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. Doi Chiang Dao Doi Chiang Dao (, ), also known as Doi Luang Chiang Dao (, ), is a 2,175 m 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 six km west-northwest of Chiang Dao town
Highest unclimbed mountain in Bhutan or on the Bhutan-China border is the tallest mountain in the world that has yet to be fully summited. Gangkhar Puensum has been off limits to climbers since 1994 when Bhutan prohibited all mountaineering above due to spiritual/religious beliefs. Unclimbed mountains are sometimes referred to as "virgin peaks". Many virgin peaks exist because the mountain is unreachable, due to either geographic isolation or political instability. Some mountains remain off limits due to religious beliefs of a country or region that hold such mountains are sacred and should remain inviolate. Additionally, since the endeavor to scale taller mountains of