 Together with Gunung Leuser and Kerinci Seblat national parks it forms a World Heritage Site, Tropical Rainforest Heritage of Sumatra.The national park stretching along the Bukit Barisan mountain range is in average only 45 km wide but 350 km long.The northern part is mountainous with its highest point at Gunung Pulung (1,964 m), while its southern section is a peninsula.