Mané-Groh dolmen, Megalithic tomb in Erdeven, Brittany, France
The Mané-Groh dolmen is a Neolithic megalithic tomb located in Erdeven, in the Morbihan area of Brittany, France. It consists of a roughly 20-foot (6-meter) granite corridor leading into a rectangular chamber divided into four sections by stone slabs.
The dolmen was built during the Neolithic period, when communities in this part of Brittany began raising large stone monuments to bury their dead. It was originally covered by a round earthen mound, known as a tumulus, which has largely disappeared over time.
Carvings on one of the entrance stones show shapes that look like a hatchet, a club, and a ring. These marks were made by the people who built the dolmen, and their exact meaning remains open to interpretation today.
The site is open-air and easy to walk around, allowing visitors to approach the corridor and chamber from different angles. Wearing sturdy footwear is a good idea, as the ground around the stones can be uneven.
About 130 feet (40 meters) to the northwest of the main monument stands a smaller, ruined dolmen that most visitors walk past without noticing. It now consists of just a few upright stones and a flat slab on the ground, showing how these ancient structures can wear down over centuries.
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