Extent: 378 square kilometres

This mountain range, known also as Bukovske Hills, is located in northeast edge of Slovakia, on borders with Poland and Ucraine, in district of Snina. It belongs to East Carpathian Mountains area.

Highest peak: Kremenec (1221 m).

Surface: is afforested or even covered with virgin forests. There are to be found here mostly beech-woods, in places where the trees are missing, there are meadows, glades and fields.

This mountaneous territory is scarcely populated, nevertheless, its nature and fauna are untouched with civilization. In Poloniny area, there is to be found the greatest basin of drinking water in Slovakia - water reservoir Starina.

Poloniny was declared as National Park in 1997.