The Reserve "Zamczysko" in Grodzisk near Kłobuck is both a historical place still full of mysteries and a valuable protected natural area. On the south bank of the Czarna Oksza river there are earth fortifications in the form of defensive embankments, whose time of creation dates to the period between VIII and XIV century A.D. Today, the settlement is covered with a beautiful oak forest with monumental trees. Some of them are over 200 years old.