Namtok Chat Trakan National Park: Protected Mountain Forests and River Headwaters in Phitsanulok Province

Namtok Chat Trakan is best known for its dramatic Chat Trakan waterfall, a seven-tiered cascade with a total drop of approximately 1,280 meters, where visitors can swim at the sandy beach near the falls. The park's mountainous dipterocarp forests and position as a key watershed for the Khwae Noi River system distinguish it within Thailand's protected area network. The unexplained prehistoric rock carvings inscribed on cliffs near the waterfall add archaeological intrigue to the natural landscape.

The path to national park designation began with a forest park survey initiated in 1982 under the name Khao Ya Puk Forest Park. In March 1982, the area was renamed Namtok Chat Trakan Forest Park as the survey process expanded to evaluate approximately 1,274 square kilometers for potential national park status. Following detailed assessment, approximately half of the surveyed area was proposed for inclusion in Thailand's national park system. The proposal for Namtok Chat Trakan, covering 339,375 rai (approximately 543 square kilometers), was submitted in 1985. The park was officially declared Thailand's 55th national park on November 2, 1987. From its establishment until 2002, the park was managed directly by the Department of National Parks, Wildlife and Plant Conservation in Bangkok. Management oversight transferred to Protected Areas Regional Office 11 (Phitsanulok) in 2002, integrating the park into the regional coordination system for protected areas in upper central Thailand.

The park's landscape consists predominantly of mountainous terrain covered in dense dipterocarp forest. The area sits within the Luang Prabang montane rain forests ecoregion, characterized by rugged peaks, steep valleys, and forest-covered slopes descending into river valleys. Phu Khai Hoi, the park's highest peak at 1,277 meters, provides sweeping views over the surrounding forest canopy. The park contains the source regions of several important waterways, including the Khwae Noi River and its tributary the Phak River, which flow through the protected area before entering the broader river systems of Phitsanulok Province. Notable geological features include sandstone formations at Khao Chang Luang and cave systems such as Tham Pha Kradan Lek containing prehistoric rock carvings. The landscape supports multiple waterfall systems, with the Chat Trakan cascade being the most prominent, featuring multiple tiers that cascade down the mountain slopes.

The park's ecological character is defined by its dipterocarp forest ecosystems, which dominate the lower and middle elevations throughout the protected area. These tropical broadleaf forests contain a diverse array of tree species including Shorea obtusa, Shorea siamensis, Shorea roxburghii, Dipterocarpus alatus, Dipterocarpus obtusifolius, and Pterocarpus macrocarpus. The forest composition also includes valuable timber species such as Afzelia xylocarpa, Xylia xylocarpa, and Anisoptera costata. At higher elevations, the vegetation transitions toward more mesophytic species including Lithocarpus and various members of the Arecaceae family. The park's position within the Luang Prabang montane rain forests ecoregion means it supports species assemblages characteristic of this distinct biogeographic region, bridging tropical Southeast Asian flora with more temperate elements found at elevation.

The mammal fauna within the park includes several Southeast Asian forest species such as barking deer, wild boar, black giant squirrel, kanchil (lesser mouse-deer), and northern treeshrew. Bird diversity is well represented with approximately 60 species documented, including around 44 passerine species from 19 families and 16 non-passerine species from 9 families. Notable avian residents include the black-crested bulbul, ashy woodswallow, black drongo, black-headed bulbul, black-naped oriole, blue-winged leafbird, chestnut-tailed starling, and various sunbirds and flycatchers. Non-passerine species include the Asian barred owlet, Asian openbill, common kingfisher, greater coucal, and green-eared barbet. The avifauna reflects the park's forest habitats and its position within the broader Indochinese biogeographic region.

Namtok Chat Trakan National Park plays an important conservation role as a protected area within Thailand's national park system, serving as a designated IUCN Category II protected area. The park protects critical watershed functions for the Khwae Noi River and Phak River systems, which provide water resources for surrounding communities and agricultural areas in Phitsanulok Province. Its inclusion within the Luang Prabang montane rain forests ecoregion highlights its significance for conserving this distinct biogeographic unit. The protected area helps maintain forest cover in a mountainous region that might otherwise face pressure from agricultural expansion or logging. The park's waterfalls and scenic landscapes also provide ecosystem services related to tourism and recreation, supporting local economic activity while promoting conservation awareness among visitors.

The park's cultural dimension centers primarily on the archaeological presence of unexplained prehistoric rock carvings found on cliffs near the Chat Trakan waterfall. These carved inscriptions remain an intriguing element of the park's heritage, though detailed interpretation or historical context is limited in available sources. Local communities in Chat Trakan and Nakhon Thai Districts have historical connections to the surrounding forested landscape, though the park does not contain major indigenous settlement or explicit traditional land use designations. The area's name combines Namtok (waterfall) with Chat Trakan (the local place name), reflecting the waterfall's centrality to the region's identity.

The seven-tiered Chat Trakan waterfall represents the park's signature natural feature, offering swimming opportunities at its sandy beach and dramatic scenery throughout the cascade. The multi-tiered Na Chan waterfall provides another significant waterfall experience, while Pha Khu Kham drops 50 meters in a single dramatic plunge. Prehistoric rock carvings at Tham Pha Kradan Lek cave add archaeological interest to the park's attractions. The summit of Phu Khai Hoi at 1,277 meters offers panoramic views for hikers willing to ascend the mountain trails. The park's role as a watershed protecting the Khwae Noi River's headwaters underscores its environmental importance beyond recreational value.

The optimal time to visit Namtok Chat Trakan National Park is during the cool dry season from November through February, when temperatures are comfortable for hiking and outdoor activities. Winter nights can become quite cold, particularly at higher elevations within the park. The rainy season from June to October brings heavy rainfall that transforms the waterfalls into more spectacular cascades, though trail conditions may be more difficult and some paths could be restricted. Summer months from March to May offer warm conditions but may lack the dramatic waterfall flows seen after the monsoon season. Visitors seeking to experience the waterfalls at their most impressive should consider timing their visit toward the end of the rainy season or early dry season when water levels remain high.