Historical sources say that “Khosrov Forest” expression is associated with the King Khosrov II Kotak (4th century). According to the chronicler Movses Khorenatsi during the king’s reign forest plantings were carried out on the territory of the present reserve. In addition, on the same territory the king established special hunting grounds for bird and animal hunting. The King Khosrov’s forest remained during the centuries to become a reserve. “Khosrov Forest” State Reserve was established in 1958. It is located in Ararat Marz of Rpublic of Armenia in the neighbourhood of Ararat valley, on the mountainous ridges Geghama, Yeranos and Yerakh. It occupies a territory of 23,878 ha at the altitudes from 700 to 2,800 m above sea level. The climate is dry continental. Winter in the reserve is cold with lots of snow and with low temperatures down to -25˚C. Summer is dry and hot with the temperatures up to 38˚C. Flora of the reserve numbers 1948 species of vascular plants, of which 80 are listed in the Red Book of Armenia and 24 are endemics. Forest coverage is 16%. Glaedes, scrubs and shrubs occupy 20% and the remaining 64% is represented by arid mountainous communites. Fauna includes 40 species of mammals, 192 birds, 33 reptiles, 5 amphibians and 9 fish. Local mountains are inhabited by brown bear (Ursus arctos syriacus), bezoar goat (Capra aegagrus), Armenian mouflon (Ovis orientalis gmelinii) and Caucasian leopard (Panthera pardus ciscaucasica) which are registered in the Red Book of Armenia.