Visited 19.09.23
If you are near Carnac, Dolmens de Rondossec are a must-visit. There are three dolmens buried in a circular mound, measuring 20m in diameter, in the centre of Plouharnel. The dolmens run in parallel on a NNW-SSE axis.
The eastern dolmen is c. 13m in length with a northern chamber measuring c. 3m x 4m. The chamber is partially covered by a massive capstone. There is a small lateral chamber, west of the main chamber measuring c. 1m x 2m.
The central dolmen measures c. 11m in length. The covered passage measures c. 6m and the large chamber measures c. 5m long. It is covered by two massive capstones.
The western dolmen is much less impressive than the others. It is c. 8m long with a c. 5m covered passage and an inaccessible chamber measuring c. 3m x 2m.
Directions: From Carnac take the D781 towards Erdeven. Follow the D781 through two roundabouts in Plouharnel then turn left onto Rue Hoche to find the tumulus.