The park is known for its rare and endangered endemic wildlife such as the Assam roofed turtle, hispid hare, golden langur and pygmy hog.

[4] Because of its exceptional biodiversity, scenery, and variety of habitats, Manas National Park is a biosphere reserve and a UNESCO World Heritage Site.

The area today consisting of the Manas National Park was under the Kingdom of Bhutan till the Duar War of 1865 when it was ceded to British India.

[citation needed] On 21 June 2011, it was removed from the List of World Heritage in Danger and was commended for its efforts in preservation.

Political Geography: The park area falls in the following districts: Chirang, Baksa in the autonomous territorial region, i.e BTR in the state of Assam in India.

Five other smaller rivers also flow through the national park which lies on a wide, low-lying alluvial terrace spreading out below the foothills of the outer Himalaya.

The park is 950 square kilometres (370 sq mi) in the area and is situated at an altitude of 61–110 metres (200–361 ft) above mean sea level.

[8] The combination of Sub-Himalayan Bhabar Terai region with riverine succession leading up to the Himalayan subtropical broadleaf forests makes it one of the richest biodiversity areas in the world.

The park's common trees include Aphanamixis polystachya, Anthocephalus chinensis, Syzygium cumini, Syzygium formosum, Syzygium oblatum, Bauhinia purpurea, Mallotus philippensis, Cinnamomum tamala, Actinodaphne obvata, Bombax ceiba, Sterculia villosa, Dillenia indica, Dillenia pentagyna, Careya arborea, Lagerstroemia parviflora, Lagerstroemia speciosa, Terminalia bellirica, Terminalia chebula, Trewia polycarpa,[9] Gmelina arborea, Oroxylum indicum and Bridelia spp.

The grasslands are dominated by Imperata cylindrica, Saccharum naranga, Phragmites karka, Arundo donax, Dillenia pentagyna, Phyllanthus emblica, Bombax ceiba, and species of Clerodendrum, Leea, Grewia, Premna and Mussaenda.

The park is well known for species of rare and endangered wildlife that are not found anywhere else in the world like the Assam roofed turtle, hispid hare, golden langur and pygmy hog.