Pulong Tau National Park: Protected Landscape Identity and Geographic Context in Limbang Division

Pulong Tau is best known for protecting the extraordinary biodiversity of the Kelabit Highlands, a remote montane region with multiple distinct forest types ranging from upper mixed dipterocarp forests at lower elevations to mossy elfin forests near the peaks. The park is celebrated for its significant endemic wildlife, including 13 species of birds found nowhere else on Earth, 12 endemic mammal species, and numerous unique amphibians and insects. The discovery of a previously thought-extinct population of eastern Sumatran rhinoceros in the area during the 1980s highlighted the park's global conservation importance. The iconic twin peaks of Bukit Batu Lawi and the imposing Mount Murud provide dramatic backdrops to this protected landscape.

The creation of Pulong Tau National Park spans more than two decades of community advocacy and governmental negotiation. Indigenous communities in the Kelabit Highlands initiated the concept of protecting this area as early as the 1970s, recognizing both the cultural significance and ecological value of their ancestral lands. In 1984, Sarawak's National Parks and Wildlife Office submitted a formal proposal to the state government, accompanied by a petition letter signed by local community members. The original proposal called for a 164,500-hectare protected area that would encompass Mount Sarawak's highest peak (Mount Murud), the twin summits of Bukit Batu Lawi, the Tama Abu mountain range, and the critical water catchment areas of northern Sarawak. Between 1984 and 1987, the Sarawak cabinet approved the concept but required boundary adjustments to resolve conflicts with areas allocated for commercial land development. A pivotal moment occurred in 1986 when biological surveys discovered a population of eastern Sumatran rhinoceros, a species previously believed to be extinct in Sarawak. The surveys also revealed the ecological significance of the laurel forests for endemic species like the Bornean bearded pig, and documented the presence of Rafflesia flowers at Mount Murud's base and occasional orangutan sightings. These findings prompted a second proposal in 1987 arguing for expanded protection. By 1998, when the proclamation creating the park was finally passed, the designated area had been reduced to 63,700 hectares, excluding both Batu Lawi and the rhinoceros habitat. The park was formally gazetted in 2005 with a protected area of 59,917 hectares.

The Pulong Tau landscape is defined by the dramatic topography of the Kelabit Highlands, a mountainous region shaped by ancient geological processes. The area formed from rifted continental crust where water-borne sediments were deposited before Borneo's separation from the Eurasian Plate, a history evidenced by the presence of evaporite deposits and limestone formations. The terrain displays clear evidence of geological folding and faulting along a northeast-southwest axis, creating the folded ridges and valley systems visible today. The park encompasses several distinct geological zones: oxidized iron and coal-bearing sandstones dominate the eastern portions of the Kelabit Highlands, while mudstone and limestone characterize the central highland areas, giving way to grey sandstones in the Mount Murud region to the west. The Tama Abu mountain range traverses the southern portion of the park, while Mount Murud rises as the highest peak in Sarawak, forming an imposing northern landmark. The park protects critical watershed areas, serving as the water catchment for the Baram, Belait, Limbang, Tutong, Trusan, and Padas rivers that sustain communities throughout northern Sarawak.

The ecological diversity of Pulong Tau National Park reflects the complex interplay of altitude, soil type, and topography across the Kelabit Highlands. The park contains a succession of forest types that transition with increasing elevation: upper mixed dipterocarp forest dominates the lower slopes, transitioning into oak-laurel forest, then into heath forest (kerangas) on the more impoverished soils, and finally into mossy elfin forest near the highest summits. These vegetation zones are not sharply delineated but overlap considerably, creating complex habitat mosaics. The mossy elfin forest is particularly rich in Rhododendron species, with the epiphytic orchids and Nepenthes pitcher plants found throughout adding to the botanical richness. The 1998 biological expedition documented 67 bird species across 29 families, with 19.4 percent being endemic to Borneo. Notable findings included Mountain Imperial Pigeons, Chestnut Crested Yuhina, and Blacknest Swifelet, while the highest peaks of Mount Murud and Batu Lawi supported species such as the Ochraceous Bulbul and Mountain Blackeye. The park also supports 28 mammal species, 12 of which are endemic to Borneo, including the unusual Mountain Giant Rat and Summit Rat.

Pulong Tau harbors remarkable wildlife diversity despite its relatively compact size, with the montane environment supporting numerous species found nowhere else on Earth. The mammal fauna includes 28 documented species, of which 12 are endemic to Borneo. Notable among these are the Mountain Giant Rat (Sundamys infraluteus) and the Summit Rat (Rattus baluensis), both specialized inhabitants of highland forest habitats. Civets and other carnivores also occur within the park boundaries. The avifauna is equally impressive, with 67 species recorded from 29 families during the 1998 survey, including 13 endemic species representing nearly 20 percent of the total bird count. The amphibian fauna includes 18 species of frogs, while four snake species have been documented, among them the Wagler's Pit Viper. Insects are exceptionally diverse, with trilobite beetles (Platerodrilus), fruit flies (Drosophila), and numerous weevil species recorded. The park also provides occasional habitat for orangutans, while the discovery of an eastern Sumatran rhinoceros population nearby during the 1980s highlighted the region's significance for one of the world's most endangered large mammals.

Pulong Tau National Park represents a critical conservation area within Borneo, protecting montane habitats that are poorly represented in the protected area network. The park's establishment was driven by recognition of its exceptional biodiversity, particularly the presence of endangered species including the eastern Sumatran rhinoceros. Although the final boundaries exclude the confirmed rhino habitat, the park still protects substantial areas of ecologically significant forest. The various forest types, from dipterocarp lowland forest through oak-laurel forest to mossy elfin summit vegetation, represent a complete altitudinal gradient that supports diverse ecological communities. The park's role as a water catchment area for six major river systems adds an essential ecosystem service dimension to its conservation value, sustaining water supplies for downstream communities across northern Sarawak. The Sarawak Forestry Corporation maintains management responsibility, working to balance protection objectives with the traditional land-use practices of indigenous communities whose cultural identity is intimately connected to these forests.

The cultural landscape of Pulong Tau is inseparable from the indigenous communities of the Kelabit Highlands, particularly the Kelabit and Lun Bawang peoples. The very name Pulong Tau carries profound cultural meaning, translating as 'our forests' in both Lun Bawang and Kelabit dialects. This name encapsulates the deep pride that indigenous people hold for their forest heritage and their ancestral lands. The park's establishment was fundamentally a community-driven initiative, with local communities advocating for protection of their traditional territories beginning in the 1970s. Their petition in 1984 was instrumental in launching the formal process that eventually led to the park's creation. The relationship between these communities and the landscape extends beyond practical land use to encompass spiritual and cultural dimensions that are reflected in place names, traditional practices, and collective memory. The park's management continues to involve these communities, recognizing that effective conservation in this remote highland region depends on respecting indigenous rights and traditional ecological knowledge.

Pulong Tau National Park offers visitors access to some of Borneo's most spectacular highland environments, anchored by Mount Murud, the highest peak in Sarawak. The twin summits of Bukit Batu Lawi create an iconic silhouette visible from much of the surrounding highlands. The transition through multiple forest types provides exceptional opportunities for observing botanical diversity, from the massive dipterocarp trees of the lower slopes to the miniature Rhododendron gardens of the mossy elfin forest. Bird enthusiasts will find significant populations of endemic species, particularly in the higher elevation zones. The park's role as a watershed for six major river systems underscores its importance beyond biodiversity, serving communities throughout northern Sarawak. The cultural heritage of the Kelabit and Lun Bawang peoples is woven throughout the landscape, making any visit an encounter with living indigenous culture as much as natural history.

The Kelabit Highlands experience a tropical montane climate that differs substantially from the hot lowlands of Borneo. The optimal period for visiting Pulong Tau typically falls during the drier months from March to September, when conditions are more favorable for hiking and wildlife observation. The northeast monsoon season from November to February brings higher rainfall to the region, though the montane forests remain lush year-round. Temperature decreases with elevation, and visitors should prepare for cool conditions especially at higher altitudes where mist and clouds are common. The wet season can bring reduced visibility on mountain peaks but also reveals the forests at their most verdant, with waterfalls at their fullest and cascades flowing through the valleys. Regardless of season, the remote nature of the park requires careful planning, and access is typically arranged through the Sarawak Forestry Corporation or authorized tour operators familiar with the region.