Khao Laem National Park

The area of the park is 935,584 rai ~ 1,497 square kilometres (578 sq mi)^[1] with steeply limestone mountain run on north–south axis. The park, which is adjacent to the Thungyai Naresuan Wildlife Sanctuary, Lam Khlong Ngu National Park and Thong Pha Phum National Park, located about 340 km northwest of Bangkok, surrounds the Khao Laem Reservoir wih a water surface of 388 square kilometres (150 sq mi), or 26% of the park. It is bisected by Road 323.

The limestone mountains of the Tenasserim Range rise from 100 to 1,800 meters high with Khao Khiao-Khao Yai as the highest summit at 1,767 meters (5,800 ft). Many streams flowing into Khwae Noi River and Vajiralongkorn Reservoir.^[5]

The establishment of the national park was declared the 67th national park in the Royal Gazette on 8 November 1991 and came into effect 5 December the same year. This park area was further modified in the years 2002 and 2009.^[2]

The area is in a tropical climate, influenced by monsoons, southeasterly winds and the Andaman Sea breezes. The region's annual weather patterns are divided into three main seasonal periods:^[6]

1. Rainy season (mid-May to October): the heaviest rainfall in July and August.
2. Cold season (November to February): the lowest average temperature is 14 °C (57 °F).
3. Summer (March to mid-May): the maximun average temperature is 38 °C (100 °F), in April.

The vegetation in the east and west of the park is mixed deciduous forest:^[7]

There have been sightings in the park of ten species of mammals:^[8]

The park has some 249 species of birds from 67 families.

145 species of passerine from 37 families, represented by one species:^[9]

107 species of non-passerine from 30 families, represented by one species:^[10]

There have been sightings in the park of eight species of reptiles:^[11]

There have been sightings in the park of ten species of amphibians:^[12]

There have been sightings in the park of thirteen species of fish:^[13]