A gallery grave is a form of megalithic tomb built primarily during the Neolithic Age, in which the main gallery of the tomb is entered without first passing through an antechamber or hallway. 

The tombs may be covered with an earthen mound (“tumulus”) or rock mound (“cairn”). This wedge tomb at Doorus Demesne (Diméin Dhúrois) consists of a simple wedge-shaped chamber, with side-stones, a back-stone and a roof-stone with stone & earth on top of the roof-stone.

Location

GPS: 53.152301, -8.972318