The sanctuary was formed in 2003, spreading over an area of 451 km2 (174 sq mi). It hosts animals like the Asian elephant, the Hoolock gibbon, the Royal Bengal Tiger and the Himalayan Black Bear.[1] It is an part of Dhansiri-Lungding Elephant Reserve.[2]
An ISRO study in 2024 found that the sanctuary is facing a loss of its green cover.[3] Land grabbing by encroachments is also another issue faced by the sanctuary.[4] A study found that the sanctuary hosts about 91 species of wild edible plants, including 2 fern species, which are consumed by the tribal people living within the sanctuary borders.[5]
^Phangchopi, Urmika; Teron, R.; Tamuli, A. (2015-12-17). "Diversity of wild edible plants in Marat Longri Wildlife Sanctuary, Assam". Indian Journal of Natural Products and Resources. S2CID55725629.