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Khao Yai National Park
IUCN category II (national park)
Haew Suwat waterfall
Location	Nakhon Ratchasima, Thailand
Nearest city	Pak Chong District
Coordinates	14°21′N 101°26′E / 14.35°N 101.44°E / 14.35; 101.44
Area	2,166 km (836 sq mi)
Established	18 September 1962
Visitors	1,551,449 (in 2019)
Governing body	Department of National Parks, Wildlife and Plant Conservation

Khao Yai National Park (Thai: อุทยานแห่งชาติเขาใหญ่, RTGS: Utthayan Haeng Chat Khao Yai, pronounced [ʔùt.tʰā.jāːn hɛ̀ŋ t͡ɕʰâːt kʰǎw jàj]) is a national park in Thailand. Established in 1962 as Thailand's first national park, it is the third largest national park in Thailand.

Description

Khao Yai National Park is in the western part of the Sankamphaeng Mountain Range, at the southwestern boundary of the Khorat Plateau. The highest mountain in the area of the park is 1,351 m (4,432 ft) high Khao Rom. This park lies largely in Nakhon Ratchasima Province (Khorat), but also includes parts of Saraburi, Prachinburi and Nakhon Nayok Provinces.

The park is the third largest in Thailand. It covers an area of 1,353,472 rai ~ 2,166 km (836 sq mi), including tropical seasonal forests and grasslands. Elevations mostly from 400–1,000 m (1,300–3,300 ft). There are 3,000 species of plants, 320 species of birds such as red junglefowl and coral-billed ground cuckoo, and 66 species of mammals, including Asian black bear, Indian elephant, gaur, gibbon, Indian sambar deer, southern pig-tailed macaque, Indian muntjac, Ussuri dhole and wild pigs. There have been no tigers in Khao Yai for at least 20 years. Its waterfalls include the 80 m (260 ft) Heo Narok (เหวนรก), and Heo Suwat (หวสุวัต) made famous by the film The Beach.

History

Around 1922 some people from Ban Tha Dan and Ban Tha Chai villages in Nakhon Nayok Province built a settlement within the forest in the Sankamphaeng mountains. Up to 30 households cultivated the land. The area was formally recognized by the government and classified as Tambon Khao Yai within Pak Phli District.

Due to its remoteness from the authorities it became a refuge for criminals and fugitives. After an attempt to capture the suspects in the area, in 1932 the villagers were relocated into the plains some 30 km away and the tambon status was cancelled.

In 1959 the prime minister, Field Marshal Sarit Thanarat, instructed the Ministry of Agriculture and the Ministry of the Interior to create a process whereby national parks could be established.

Khao Yai National Park was then established on 18 September 1962, declared by royal proclamation in the Government Gazette (Book 79, Section 89) as the first national park in Thailand. A major role in its establishment was played by Boonsong Lekakul, one of the 20th century's most famous Thai conservationists. It was named after the defunct tambon, Khao Yai.

In 1984 the park was made an ASEAN Heritage Park, and on 14 July 2005 the park, together with other parks in the same range and in the Dong Phaya Yen Mountains further north, was proclaimed a UNESCO World Heritage Site under the name "Dong Phaya Yen–Khao Yai Forest Complex". As the lands adjacent to the national park are becoming increasingly developed into luxury hotels and golf courses, acquiring land for future wildlife conservation efforts is becoming problematic. Homes and residential villas have been built illegally within the limits of the protected area of the forest. Illegal logging is also a problem in the area of the park.

Key mountains

Khao Rom (เขาร่ม)

Khao Rom is the highest mountain in Khao Yai National Park, measuring up to 1,351 meters above sea level.

Reaching the peak of the mountain is only accessible on foot, which few people attempt to, except for forestry officers

Khao Laem (เขาแหลม)

Since this mountain is spiral shaped, it is called Khao Laem (เขาแหลม; Lit: Spiky Mountain). Khao Laem is the park's 2nd highest mountain, the highest being Khao Rom.

Similar to Khao Rom, reaching the peak of the mountain is also only possible on foot. Reaching the peak of the mountain takes no less than 7 hours. Before reaching the absolute summit, one must also climb up a rope.

With such difficult challenges climbing the mountain, The Lottery Club once awarded a 60,000 baht prize to a woman who would conquer the summit of the peak. The recipient of the award, Catherine B. Buri, conquered the summit in 1972.

The path used to travel to the summit of the mountain is also used as a wildlife corridor by animals, therefore many animal tracks are found here. Ascending the mountain also affords the opportunity of seeing various forms of wildlife.

Visitors

According to the Department of National Parks (DNP), which manages the park, visitors to Khao Yai have risen from 671,569 in 2008 to more than 1.2 million in FY2016. From October 2015 to September 2016, 471,514 vehicles entered the park. The congestion has led to demands to close the park to private vehicles. During one of its busiest periods, New Year's week from 30 December – 3 January 2016, the park received 156,574 visitors. They left in excess of 23 tonnes of waste behind. As litter was a serious problem at the park, in 2020 the park started mailing litter to the homes of visitors who left it there.

Climate

Khao Yai National Park has three main seasons, with an annual mean temperature of 23 °C, though this varies greatly with the seasons.

• Rainy season (May–October): Most days have high rates of precipitation. The atmosphere is humid with average temperatures of 27 °C during the day dropping to 13 °C at night. Streams at peak flow.
• Cool season (November–February): Clear skies, sunny and cool. Average temperatures of 22 °C during the day and 10 °C at night. Good time for hiking.
• Hot season (March–April): Humid with daytime temperatures of 20–30 °C and 17 °C at night.

Geology

Limestone is present towards the eastern end close to the Dângrêk Mountains. Sandstone outcrops exist in the south and north of the park. Shales and schist are also present. In the south, steep slopes made of granite and conglomerates are seen.

Drainage

There are four drainage areas in the park which are vital catchments for four river systems. The Lam Takhong River drains from the central Khao Yai area and runs in a northeasterly direction to the Mekong. The Sai Yai River system drains from the eastern basin, turning sharply into the southern floodplains and on to the Gulf of Thailand. The Nakhon Nayok River system drains from the southwest watershed into Nakhon Nayok Province to the south. The Saraburi Province drainage system drains westward from the far west of Khao Yai.

Fauna

Khao Yai is home to a variety of animals. It is one of the few places in Thailand where wild elephants still survive. Other larger animals include gibbons, pig-tailed macaques, muntjacs and sambar deer. Other large animals include barking deer, porcupine, and civet. Other species that can occasionally be seen include sun bear, Asian black bear, gaur, otter, dhole and jackal. In early-2017 it was announced that 18 tigers, including five males, seven female and six cubs, were filmed by surveillance cameras in the Dong Phaya Yen-Khao Yai world heritage site in June 2016 and February 2017 in a joint effort of the Department of National Parks, the Freeland Foundation, and the Panthera Corporation. The last time that tigers were seen by surveillance cameras in Khao Yai National Park was in 2002.

Tribute

On 18 September 2017, Google celebrated the 55th anniversary of Khao Yai National Park with a Google Doodle.

See also

• Dong Phayayen - Khao Yai Forest Complex
• Sankamphaeng Range
• List of national parks of Thailand
• List of Protected Areas Regional Offices of Thailand

References

1. "Dong Phayayen-Khao Yai Forest Complex". World Heritage Convention. Archived from the original on 9 June 2022. Retrieved 9 June 2022.
2. "Khao Yai National Park". Thai National Parks. Archived from the original on 16 February 2019. Retrieved 7 July 2021.
3. "ข้อมูลพื้นที่อุทยานแห่งชาติ ที่ประกาศในราชกิจจานุบกษา 133 แห่ง" [National Park Area Information published in the 133 Government Gazettes]. Department of National Parks, Wildlife and Plant Conservation (in Thai). December 2020. Retrieved 1 November 2022, no 1{{cite web}}: CS1 maint: postscript (link)
4. "Bonanza Khao Yai resort faces demolition for encroachment of Khao Yai national park". Thai PBS. 8 April 2015. Archived from the original on 30 March 2017. Retrieved 30 March 2017.
5. Panusittikorn, Pakkawadee; Prato, Tony. "Conservation of Protected Areas in Thailand: The Case of Khao Yai National Park" (PDF). George Wright Society. Archived (PDF) from the original on 13 January 2021. Retrieved 30 March 2017.
6. "Give wildlife right of way". Editorial. Bangkok Post. 5 January 2018. Archived from the original on 13 January 2021. Retrieved 5 January 2018.
7. Wangkiat, Paritta (5 March 2017). "Tourism pressures could be changing bear behaviour". Bangkok Post. Archived from the original on 4 October 2022. Retrieved 30 March 2017.
8. "Thai national park sends rubbish back to tourists". BBC News. British Broadcasting Corporation. 18 September 2020. Archived from the original on 2 October 2020. Retrieved 1 October 2020.
9. "Khao Yai National Park". www.nakon-nayok.com. Archived from the original on 13 January 2021. Retrieved 2 October 2020.
10. "Khao Yai National Park". Thai National Parks. Archived from the original on 16 February 2019. Retrieved 20 July 2021.
11. "18 tigers caught by surveillance cameras in world heritage site". Thai PBS. 28 March 2017. Archived from the original on 31 March 2017. Retrieved 30 March 2017.
12. "55th Anniversary of Khao Yai National Park". Google. 18 September 2017. Archived from the original on 13 January 2021. Retrieved 4 October 2019.

External links

• Khao Yai National Park travel guide from Wikivoyage
• National Park Division
• Mammals, birds and reptiles of Khao Yai National Park
• thaibirding.com on Khao Yai National Park
• List of Birds of Khao Yai National Park

v t e Tourism in Nakhon Ratchasima Province
City of Nakhon Ratchasima	Thao Suranari Monument Northeastern Museum of Petrified Wood and Mineral Resources Nakhon Ratchasima Zoo Nakhon Ratchasima City Gates
Upper section	Phimai National Museum Phimai Historical Park
Lower section	Khao Yai National Park Mueang Sema Historical Site Wat Thammachak Semaram Ancient Khorat Prasat Non Ku Prasat Mueang Khaek Prasat Mueang Kao Dan Kwian Pottery Village Farm Chokchai
List of tourist attractions

v t e World Heritage Sites in Thailand
Cultural	Ban Chiang Archaeological Site Historic City of Ayutthaya Historic Town of Sukhothai and Associated Historic Towns Sukhothai Kamphaeng Phet Si Satchanalai Phu Phrabat, a testimony to the Sīma stone tradition of the Dvaravati period The Ancient Town of Si Thep and its Associated Dvaravati Monuments
Natural	Dong Phayayen–Khao Yai Forest Complex Khao Yai Thap Lan Pang Sida Ta Phraya Dong Yai Kaeng Krachan Forest Complex Kaeng Krachan Kui Buri Chaloem Phrakiat Thai Prachan Mae Nam Phachi Thungyai–Huai Kha Khaeng Wildlife Sanctuaries Thung Yai Naresuan Huai Kha Khaeng

• IUCN Category II
• National parks of Thailand
• ASEAN heritage parks
• World Heritage Sites in Thailand
• Isan
• Tourist attractions in Nakhon Ratchasima province
• Tourist attractions in Saraburi province
• Tourist attractions in Prachinburi province
• Tourist attractions in Nakhon Nayok province
• Protected areas established in 1962
• 1962 establishments in Thailand
• Sankamphaeng Range