The first stones were laid in the 15th century on the orders of Louis XI.
The silhouette of this dolmen resembles that of a cow’s head. The site was of great importance to the Druids.
The beaches stretch over 4 km direction south, and then direction Marais Breton.
At the top of the mound of Teil, or mount of the guards in Courgains, two curious instruments await discovery : a fixed chart with