The Teufelsmauer (Devil's Wall) is a rock formation made of hard sandstones of the Upper Cretaceous in the northern part of the Harz Foreland in central Germany. This wall of rock runs from Blankenburg (Harz) via Weddersleben and Rieder to Ballenstedt. The most prominent individual rocks of the Teufelsmauer have their own names. The Teufelsmauer near Weddersleben is also called the Adlersklippen ("Eagle Crags").