Belasitsa Natural Park encompasses the lands of the villages of Gabrene, Skrat, Klyuch, Yavornitsa, Kamena, Samuilovo, Kolarovo, Belasitsa (known as Podgorie) and the city of Petrich, together with the land of Razhdak village, all of them located on the territory of Petrich municipality, Blagoevgrad district. It was established for the purposes of: preservation of centuries-old forests, consisting mainly of common beech; preservation of protected and endemic plant species; preservation of protected and endemic animal species.