[2] The national park forms part of the Heart of Borneo conservation project.

[3] There have been 817 species of plant recorded in the park, including from the families of Dipterocarpaceae, Myrtaceae, Sapotaceae, Euphorbiaceae, Lauraceae and Ericaceae.

Plants endemic to the island include Symplocos rayae, Gluta sabahana, Dillenia beccariana, Lithocarpus coopertus, Selaginnella magnifica and Tetracera glaberrima.

[1] The park protects the habitat of clouded leopards, orangutans, sun bears (Helarctos malayanus euryspilus), maroon leaf monkeys, slow lorises (Nycticebus coucang borneanus), sambar deer and flying squirrels.

[1] Indigenous people in the park include the ethnic groups of the Dayak Limbai, Ransa, Kenyilu, Ot Danum, Malahui, Kahoi and Kahayan.