Ta Phraya National Park

Ta Phraya National Park is a protected forest area spanning Sa Kaeo and Buriram provinces in eastern Thailand, centered in Ta Phraya District. Established in 1996 and part of the Dong Phayayen-Khao Yai Forest Complex UNESCO World Heritage Site, it covers about 594 square kilometers of forested mountains along the Cambodian border. It is known for its biodiversity, scenic viewpoints, hiking trails, and the ancient Khmer ruins of Prasat Khao Lon.

Visitors can expect a forested mountain landscape with dense deciduous and evergreen forest, viewpoints along the Dong Phayayen range, and quiet nature trails. The park headquarters area provides visitor information, camping grounds and simple bungalows. Key sites include the Prasat Khao Lon Khmer ruins on a hilltop, nature study trails, birdwatching areas and the nearby Lalu earth formations. Facilities are basic and the environment is natural and remote.

Established in 1996 as Thailand's 82nd national park, Ta Phraya protects a section of the Dong Phayayen mountain range. It forms part of the Dong Phayayen-Khao Yai Forest Complex inscribed as a UNESCO World Heritage Site in 2005 for its biodiversity and forest ecosystems. The park also preserves Prasat Khao Lon, an ancient Khmer sandstone sanctuary believed to date to the 11th century.

The park contains Prasat Khao Lon, a Khmer religious sanctuary reflecting the historical Khmer cultural influence in eastern Thailand, and serves as an important site for nature education, conservation awareness and recreation for surrounding communities.