Dolmen à couloir de Coëby - 2 TREDION View slideshow Share on Facebook Share on Twitter Home » detail » Dolmen à couloir de Coëby – 2 Mégalithe Large corridor dolmen located on the edge of the road of the old road to Rennes. The chamber consists of three brackets and a fourth smaller one inside the chamber. A cover slab is tilted to the west. The hallway is gone, along with the entire external structure. This monument was classified as a Historic Monument on August 25, 1966. Read more Close Features Languages spoken Services/equipment equipement Accès handicapés autres Mégalithe