Twelve Hill National Park is one area of lowland tropical rain forest in Jambi Province. Initially this area is permanent production forest, limited production forest areas and other uses which are combined into a national park. Natural forests that still exist situated in the northern part of this national park, while the other is a secondary forest.
Existing plant species, among others Bulian (Eusideroxylon zwagerí), meranti (Shorea sp.), Menggeris / Kempas (Koompassia excelsa), (Dyera costulata), jernang (Daemonorops draco), damar (Agathis sp.), And rattan (Calamus sp.). There are approximately 120 species of plants including fungi that can be developed as a medicinal plant.
This national park is the habitat of rare and endangered species such as gibbons (Hylobates syndactylus syndactylus), monkey (Macaca nemestrina), clouded leopard (Neofelis nebulosa diardi) (Tragulus kanchil javanicus), sun bear (Helarctos malayanus malayanus), deer (Muntiacus muntjak montanus), meow congkok (Prionailurus bengalensis sumatrana), Lutra Sumatra (Lutra sumatrana), ajag (Cuon alpinus sumatrensis), Sumatran rabbit (Nesolagus netscheri), snake eagles eagle (Spilornis cheela malayensis), and other rivers and lain.Jumlah very many tributaries originating from within the area (look at the map as the root fibers), so that this region is the most important water catchment area for Batanghari Watershed.
Topography of this national park is flat to undulating, with hills / mountains like Mount Suban, pigeon river (± 164 m asl), Mount Grill (± 328 m asl), and Bukit mealli (± 438 m asl).