Le Dolmen du Couperon is a Chalcolithic (3250 - 2250BC), 8m long capstoned chamber surrounded by a ring of 18 curb stones known as a 'peristalith'. Originally covered by a long mound what remains today is largely the work of restorers. When first excavated in 1868 the capstones had fallen into the chamber. These stones, including a porthole stone were lifted and placed as capstones. In 1919 the Société Jersiaise removed the porthole stone which had been incorrectly placed as a capstone and moved it to its current position at the eastern end of the chamber. Finds included a few flint flakes and pottery fragments.
The adjacent Le Couperon Guardhouse was built in 1689 of local stone, with brick lintels. It supported a battery on the headland above as a magazine and shelter for the members of the Jersey militia that served the battery. The battery commanded Rozel Bay and by 1812 consisted of two 24-pounder muzzle-loading guns that fired over a low wall, which has long disappeared.
References:The Château du Lude is one of the many great châteaux of the Loire Valley in France. Le Lude is the most northerly château of the Loire Valley and one of the last important historic castles in France, still inhabited by the same family for the last 260 years. The château is testimony to four centuries of French architecture, as a stronghold transformed into an elegant house during the Renaissance and the 18th century. The monument is located in the valley of Le Loir. Its gardens have evolved throughout the centuries.