Khun Khan National Park is situated in an approximate area of 397 square kilometers or 248,125 rai, covering the areas of Pa Sa-merng National Conserved Forest and Mae-Chaem Forest in Sub-District Mae-sarb, Sub-District Bor-kaew, Sub-District Sa-merng Nua, Sub-District Sa-merng Tai of Sa-merng Tai District, and Sub-District Ban Chan, Sub-District Mae Na-jarn of Mae-Chaem District, Chiang Mai Province.
Topography
The geographical features of the National Park consist of high mountains (500-1,708 meters above the medium sea level). Doi Pung-kia is the highest mountaintop (1,708 meters above the medium sea level), which is the source of Mae-khan River and Mae-Chaem River flowing into the Ping River.
Climate
The weather at the National Park is cool and breezy throughout the year. The average highest temperature is 28aC; the average lowest temperature is 18 C; and the average year-round temperature is 23aC; meanwhile, the average rainfall is 1,380 mm/year.
Flora and Fauna
There are various kinds of forests within the areas of the National Park, including virgin forests, which can be found on mountains at the altitude of at least 1,000 meters above the medium sea level located on the upper part of the National Park and on mountains separating the areas between Sa-merng District and Mae-Chaem District, and of which major plants include Lithocarpus Cantleyanus (Kor), Pinus Kesiya Royle Ex Gordon (three-leaf pines), Talo, Duabanga Sonneratioides (Toom-ten), Malacca tree, Michelia Alba, Dillenia Aurea Smith (Ma-san), Mammea Siamensis, Planchonelia Cambodiana (Nom-nang), etc; arid, evergreen forests, which can be found in the areas of valleys and gullies (600-1,000 meters above the medium sea level) and of which major plants include rubber trees, Malabar Ironwood, Mangifera Caloneura Kurz (wild mango), Paranephelium Longifoliolatum Lec., Baccaurea Ramiflora, Ficus Glomerata, etc.; pinery, which can be found on mountaintops at the altitude of 700-1,300 meters above the medium sea level, and of which major plants include Pinus Merkusii Jungh (two-leaf pines), Pinus Kesiya Royle Ex Gordon (three-leaf pines), Lithocarpus Cantleyanus (Kor), Calotropis Gigantea (Rak), Shorea Siamensis (Rang), Dipterocarpus Intricatus (Hiang), etc.; mixed forests, which can be found in the east of the National Park and of which major plants include teaks, Therm, Terminalia Chebula, Dioscorea Alata (Sao), Xylia Xylocarpa (redwood plants), Leguminosae (Pradoo), Desmodium Renifolium Schindl. (Seaw), Protium Serratum (Ma-fan), Gmelina Arborea (Sor), etc.; timber forests, which can be found on medium-high mountains, of which major plants include timbers, Shorea Siamensis (Rang), Dipterocarpus Intricatus (Hiang), Dipterocarpus Tuberculatus (Pluang), Pinus Merkusii Jungh (two-leaf pines), olives, Dioscorea Alata (Sao), Desmodium Renifolium Schindl. (Seaw), etc.
Wild animals found in the National Park include Muntiacus Muntjak, wild boars, red jungle fowls, porcupines, Asiatic wild dogs, foxes, pangolins, moles, squirrels, wild rabbits, flying squirrels, bats, masked palm civets, mongooses, monkeys, gibbons, tigers, goral, Great Hornbill, etc.
