Ton Sak Yai National Park is located about 90 kilometres (56 mi) east of Uttaradit town in Nam Pat, Pak Huay Chalong, Huay Sisead, Khlong Tron Fang Khwa and Khlong Tron Fang Say forests in Uttaradit province.[3] The park's area is 324,240 rai ~ 519 square kilometres (200 sq mi)[5] and neighbouring Lam Nam Nan National Park and Nam Pat Wildlife Sanctuary to the north, abutting Phu Miang-Phu Thong Wildlife Sanctuary to the east and neighbouring Khao Yai-Khao Na Pha Thong & Khao Ta Phrom non-hunting area to the west. It is a high and a low mountain range, such as Khao Chan, Khao Daet, Khao Khwam Ruea, Khao Mai Pha, Khao Nam Yoi, Khao Ngai Ruea, Khao Phak Khwang, Khao Sam Liam, Khao Tak Bon, Khao Thanon, Khao Yuak and Khao Phu Miang is with 1,500 metres (4,900 ft) the highest. The park's streams feed the Nan River.[6]
Climate
Ton Sak Yai National park has a tropical savanna climate (Köppen climate classification category Aw), which is divided into three seasons. The rainy or southwest mansoon season, with hot weather from May until September. Winter or northeast mansoon season, with cold weather from October until February. Summer or pre-mansoon season, from March until April. Temperature statistics: maximum temperature is 43 °C (109 °F) and lowest temperature is 13 °C (55 °F).[7]
History
In December 1990, a survey was set up in the Khlong Tron National Forest Reserve in Mueang Uttaradit and Nam Pat districts of Uttaradit province. The name was "Khlong Tron National park". On November 8, 1994, a draft decree was proposed to establish a national park, including Nam Pat Forest, Pak Huay Chalong Forest, Huay Sisead Forest, Khlong Tron Fang Khwa Forest and Khong Tron Fang Say Forest. On December 4, 2003, Khlong Tron National Park, covering an area of 519 km2 (200 sq mi) was declared the 103rd national park and managed by Protected Areas Regional Office 11 (Phitsanulok).[3] On July 12, 2012, the name of the park was changed to "Ton Sak Yai National Park", after the 1500 year old teak tree with a circumference of 10 meters.
^"ต้นสักใหญ่" [Ton Sak Yai]. Department National Parks, Wildlife and Plant Conservation (in Thai). Retrieved 29 October 2021, ลักษณะภูมิประเทศ - topography.{{cite web}}: CS1 maint: postscript (link)
^"ต้นสักใหญ่" [Ton Sak Yai]. Department National Parks, Wildlife and Plant Conservation (in Thai). Retrieved 29 October 2021, ลักษณะภูมิอากาศ - climatic characteristics.{{cite web}}: CS1 maint: postscript (link)
^"ต้นสักใหญ่" [Ton Sak Yai]. Department National Parks, Wildlife and Plant Conservation (in Thai). Retrieved 29 October 2021, พืชพรรณ - flora.{{cite web}}: CS1 maint: postscript (link)
^"ต้นสักใหญ่" [Ton Sak Yai]. Department National Parks, Wildlife and Plant Conservation (in Thai). Retrieved 29 October 2021, สัตว์ป่า - fauna.{{cite web}}: CS1 maint: postscript (link)
^"ส่วนอุทยานแห่งชาติ, 10 อุทยาน" [National parks section, 10 parks]. Office of Conservation Area 11 (Phitsanulok) (in Thai). 2021. Retrieved 10 July 2021.