Doi Inthanon National Park Doi Inthanon National Park Doi Inthanon National Park (), nicknamed "the roof of Thailand", is in the Thanon Thong Chai Range, Chom Thong District, Chiang Mai Province, northern Thailand. It includes Doi Inthanon, the country's highest mountain. Established in 1972, it is in size. The park is approximately from Chiang Mai. It includes Karen and Meo Hmong villages of about 4,500 people. Its elevation ranges between . Within its borders are a number of waterfalls: Mae Klang Falls, Wachiratan Falls, Siriphum Falls, and Mae Ya Falls. The park has varied climatic and ecologically different sections. Flora includes evergreen cloud forest,
Highest unclimbed mountain Highest unclimbed mountain An unclimbed mountain is a mountain peak that has yet to be climbed to the top. Determining which unclimbed peak is highest is often a matter of controversy. In some parts of the world, surveying and mapping are still unreliable, and there are no comprehensive records of the routes of explorers, mountaineers and local inhabitants. In some cases, even modern ascents by larger parties have been poorly documented and, with no universally recognized listing, the best that can be achieved in determining the world's highest unclimbed peaks is somewhat speculative. Most sources indicate that Gangkhar Puensum ()