The area: 600 hectares. In 1978, based on the tract "Vorotnev" was created by one of the oldest protected area facilities, to preserve the unique oak-hornbeam forests with an admixture of pine, birch, spruce, aspen, alder. Here grow the rare oak-ash plantations of the grass cover which grows over 900 species of higher plants and some listed as endangered and rare species on the plains - astrantsiya big.