Established on September 18, September 1962. In 1982 it was enlisted as a ASEAN heritage
site due to its variety of flora and fauna, and is now world - famous. Khao Yai has
also been nominated as a World Heritage Site. It is Thailand’s third largest Nation
Park, covering an area of 2,165.55 sq.km. and its highest peak, Khao Rom, reaches
an elevation of 1,351 m. above sea level. Khao Yai is part of the Dongrak Range,
which forms a mountainous wall fencing the northeast plateau form the central plain
of Thailand. Park headquarters are situated roughly 200 km northeast of Bangkok.
The park extends across four provinces: Saraburi, Nakhon Nayok, Nakhon Ratchasima
Khao Yai National Park consists of complicated mountains such as Khao Rom, the highest
about 1,351 metres, Khao Lam about 1,326 metres, Khao Kampang about 875 metres, Khao
Samor Poon about 805 metres and Khao Kaew about 802 metres above sea level. Moreover,
the area has vastly grassy field alternating with productive forest. The north and
the east part are smoothly sloping down, while the south and the west part are rising
There are 3,000 species of plants, 320 species of birds like red jungle fowl and
green peafowl and 67 species of mammals, including Asiatic black bears, Asian elephants,
gaur, tigers, gibbons, Indian sambar deer, crab-eating macaque, Indian muntjac, dholes,
and wild pigs.
The area is the source of five main rivers as follow.
1) Prachin Buri River
2) Nakhon Nayok River situated in the south part and important for local agriculture
and economy, meet one another in Chachoengsao District to become Bangpakong River
go to the Gulf of Thailand.
3) Lam Ta Kong River
4) Praplerng River, in the north part, go to maintain the agriculture of Korat Plateau
and meet Moon River, the main river of Southern Isan that goes to Khong River.
5) Muag Lek Stream, located in the northwest part and going to Pasak River in Muag
Lek District, is valuable for local agriculture and cattle, and has water all the
Khao Yai has three main seasons, with an annual mean temperature of 23 deg C, though
this varies greatly with the seasons.
Rainy Season: May-October. During this season, it rains most days, resulting in stunning
waterfalls. The atmosphere is humid, with average daytime temperatures of 27 deg
C, In the humidity, flora and fauna flourish, while after the rain there is clean
air and clear visibility ( great for photography ).
Cold season: November- February. This is the most popular time to visit Khao Yai,
as clear, sunny and cool weather is ideal for hiking and nice sunsets are common.
The days average around 22? C, while the nights can drop to 10 deg C.
Hot Season: March-April Even in the hot season, Khao Yai does not experience of heat
felt elsewhere in the country. Daytime temperatures reach between a high 20 deg C,
to a low 30 deg C, During this season it is dry and often windy.
A major role in its establishment was done by Boonsong Lekakul, one of the 20th century's
most famous conservationists in Thailand. Cont: next page