Thanon Thong Chai Range of Southeast Asia. Other high peaks of the Thanon Thong Chai Range are 2,340 m high Doi Hua Mot Luang, the second highest peak in Thailand, Doi Pui (1,685 m), and 1,676 m high Doi Suthep. Certain hill tribe communities live in the range, like the Hmong and the Karen whose tribal villages dot the mountainsides. Some of these communities are regularly visited by organized tourist groups. Doi Inthanon was formerly known as Doi Ang Ka and was renamed in honor of King Inthawichayanon at the end of the 19th century. The vegetation is mostly deciduous forest below 1,000 m
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