The site is listed under Criteria vii - outstanding scenic beauty; ix- an outstanding example representing significant on-going ecological and biological processes; and x- contains the most important and significant natural habitats for in-situ conservation.

[1] The Tropical Rainforest Heritage of Sumatra has been placed on the Danger List since 2011 to help overcome threats posed by poaching, illegal logging, agricultural encroachment, and plans to build roads through the site.

This once vast island of tropical rainforest has been condensed to secluded areas, in the space of 50 years.

Second, the national parks that make up the heritage are all located on the well-known key spine of the Bukit Barisan Mountains, known as the ‘Andes of Sumatra’, and that all around it there are magnificent views.

2.5 million hectares of Sumatra's rainforests were included on the World Heritage List of the UN Educational, Scientific and Cultural Organization (UNESCO) because of their rich and different biodiversity.

The northern half has a lower eastern mountain range, between 800 and 1500 m. Three quarters of the park is steep.

In Bukit Barisan Selatan, the rocky west is wet especially during the November to May monsoon: rainfall is 3000–4000 mm.

Several important bird species: Rueck's blue-flycatcher, and white-winged wood duck.

Some important mammal species: Bornean clouded leopard, Asian tapir, and Sumatran rhino.

A few of important plant species: Hopea beccariana and Shorea ovalis ssp.