Poloniny National Park is a national park in northeastern Slovakia at the Polish and Ukrainian borders, in the Bukovské vrchy mountain range, which belongs to the Eastern Carpathians. It was created on 1 October 1997 with a protected area of 298.05km2 and a buffer zone of 109.73km2. Selected areas of the park are included into Primeval Beech Forests of the Carpathians UNESCO World Heritage Site.LocationThe park is located in the Snina District in the Prešov Region. It is adjacent to the Bieszczady National Park in Poland, together they are part of the East Carpathian Biosphere Reserve. The highest point lies at 1208m AMSL on a point where the borders of Slovakia, Poland and Ukraine meet, near the summit of the mount Kremenec. National Park is the easternmost and the least populated area of the country. Hiking trails starts from several villages, most notably Nová Sedlica but also from Runina, Topoľa and Uličské Krivé.Biology and ecologyForests cover about 80% of the area; beech and beech-fir forests are dominant. The National Park has the highest concentration of old growth forests in Slovakia, which are protected by national nature reserves. Meadows, called poloniny in Eastern Slovak dialects, situated on the main ridge of the Bukovské vrchy mountain range are common.