Chiang Mai Province of approximately . The mountains of the Daen Lao Range () at the north end of the province, the Thanon Thong Chai Range () stretching in a north-south direction, and the Khun Tan Range in the east of the province are covered by rain forest. The Mae Ping, one of the major tributaries of the Chao Phraya River, originates in the Daen Lao mountains. The highest mountain in Thailand, Doi Inthanon at , is in Chiang Mai Province. Several other national parks are also in the province: Doi Suthep-Pui, Ob Luang, Sri Lanna, Huai Nam Dang, Mae Wang, and Pha
Ansonia inthanon Ansonia inthanon Ansonia inthanon is a species of toad in the family Bufonidae. A small stream toad, measuring only 22-26mm in length. Its natural habitat is near torrents in subtropical forest on sloping land. It is threatened by habitat loss for agriculture, use by medical research (although this is not a significant threat) and by the introduced American bullfrog. Though it is only known from Doi Inthanon National Park and Thongphaphum in Kanchanaburi Province, it is not rare in suitable habitat. The species was recently discovered in a third locality, Doi Suthep National Park in Chiang Mai Province, and may