It was inscribed as a UNESCO World Heritage Site on 4 July 2015 under the title "Great Burkhan Khaldun Mountain and its surrounding sacred landscape."
It is in a complex ecosystem with unique biodiversity which is defined as a "transition zone from Siberian permafrost land forms to great steppe".
In this document Burkhan Khaldun is described in detail and mentioned 27 times, which signifies the unique position of the mountain in Mongolia‘s heritage.
Special worship is offered to the mountain according to a prescribed procedure at the main "Ovoo of the Heaven"; it is reserved for a few officials of the state and local administration, shamans and a few Buddhist lamas (monks).
[6]: 14 Burkhan Khaldun was inscribed as a UNESCO World Heritage Site at the 39th session of the World Heritage Committee on 4 July 2015 under the title "Great Burkhan Khaldun Mountain and its surrounding sacred landscape", covering an area of 443,739 hectares (1,096,500 acres) and an additional buffer zone of 271,651 hectares (671,260 acres), categorised under Criterion (iv) for its unique cultural tradition of mountain and nature worship of past several millennium, and (vi) for its universally known historical and literary epic of immense importance.
[6]: 12 The specified route is unique and covers: Main Ovoo of Heaven at the pinnacle of the mountain via Gurvan Khoriud ("Three Forbidden Precincts"); the Uud Mod ("Two Trees of Entrance"); the Bosgo Tengeriin Davaa ("Threshold Pass of Heaven"); the catchment of the Kherlen River and the Sacred Bogd Rivers; and finally to the Beliin ("Lowest") ovoo.
[6]: 20 According to the Mongolian Red Data Book the very rare mammal species are musk deer (Moshus moshiferus) and moose (Alces alces); the very rare bird species are the Siberian white crane (Grus luecogeranus), Greater spotted eagle (Aquila clanga), Pallas’s fish eagle (Haliaeetus leucoryphus), white-naped crane (Grus vipio) and hooded crane (Grus monacha); the fish species is the Amur sturgeon (Acipenser schrenckii).