Thung Salaeng Luang National Park

Thung Salaeng Luang National Park (; ) is a national park in Phitsanulok and Phetchabun Provinces of Thailand. It encompasses substantial portions of Wang Thong and Lom Sak Districts.
Topography.
The park consists of limestone hills, slate and hardpan at altitudes ranging from , Khao Khae is the highest point in the park. Thung Salaeng Luang is inlaid with meadows, especially in the southern portions of the park. The park is the source of numerous streams. There are large salt licks at Pong Sai in the northwest and Pong Thung Phaya in the southwest. The Wang Thong River flows through the park.
History.
Thung Salaeng Luang was proposed for inclusion in the national parks system In 1959. Thung Salaeng Luang was declared the 3rd national park in 1963, covering an area of . At the request of the Thai Army were withdrawn from the national park. That is why a "new" national park area was created in 1972. Thung Salaeng Luang was "reestablished" as a national park on 27 May 1975, covering an area of . From the late-1960s to the early-1980s, the park's forest was used as a base for guerrillas of the Communist Party of Thailand.
Flora.
Deciduous dipterocarp and mixed evergreen-deciduous forest with lowland shrub, such as "Mussaenda parva" and broadleaved evergreen, such as Livistona palm and Mountain date palm.
 Plants include "Barleria strigosa", Christmas berry and "Pseuderanthemum andersonii".
<br>Flowers at Thung Non Son are: dok ngon nak "(Murdannia giganteu)", dusida flower, kradum ngoen and uang nuan chan orchid.
Fauna.
The number of sightings in the park are:
<br>Three species of mammals, include:
One species of turtles in the park:
Ten species of lizards, include:
Fifteen species of reptiles, include:
Four species of amphibians, include:
This park is famous for its butterflies, such as Common archduke.
<br>The park has 113 species of birds, of which 78 species of passerines include:
35 species of non-passerines, include:
Climate.
The average annual temperature is , although temperatures often reach during late spring and early summer. The average annual rainfall is .
Malaria.
Historically, malaria has been a health issue in the park.
Effects of human presence.
Communist insurgents as well as hill tribes and other intruders have destroyed some of the park's flora and fauna over the years.
Facilities.
There are seven bungalows at the park's headquarters and five bungalows at Nong Mae Na office, also four campsites but no concessions in the park.