A forest reserve with the area of 216.54 hectares situated in Ustrzyki Dolne commune. It encompasses the Carpathian beechwood.
The nature reserve was established to protect the Carpathian beechwood . Historic stand of trees like sycamore maple, beech and fir has more than 100 years . Numerous trees are 300-450 centimetres in circumference. In the reserve there are found various species of mountain plants. The most interesting are: Heart-leaved Twayblade, Perennial Honesty, Whorled Solomon's Seal, Orpine, Heart leaf Comfrey, Wild ginger and True oxlip. There are also found here salt-springs , which chemistry is similar to the mineral springs in Iwonicz and Rymanów health resorts.