Ballyedmonduff Wedge Tomb, Bronze Age burial site in County Dublin, Ireland

Ballyedmonduff Wedge Tomb is a wedge-shaped gallery grave on the south-eastern slope of Two Rock Mountain. It has a rare sequence of antechamber, main chamber and well-preserved end chamber, enclosed by a wedge-shaped kerb that is double-walled inside and single outside. A long stone at the southern end bears seven cup marks.

Built around 1700 BC in the early Bronze Age, this wedge tomb was excavated in the 1830s and again in 1940, when cremated bone, a polished stone hammer, flints and pottery were found. It is a National Monument.

The tomb is also known as the Giant's Grave, from the Irish Baile Éamainn Duibh. A long stone at its southern end carries seven cup marks, rock art usually linked to the earlier Neolithic culture and found on natural outcrops such as those at Reyfad. The stone may have been brought here from an outcrop.

Access is via the Glencullen Adventure Park walking trails, which form part of the Dublin Mountains Way. Mountain bike trails run within 15 feet of the monument, so stay alert on the approach. The surrounding trees were cut down in 2020, leaving the tomb exposed on the south-eastern slope of Two Rock Mountain.

At the southern end of the tomb lies a long stone bearing seven cup marks on its upper surface. Such rock art is usually linked to the earlier Neolithic culture and is normally found on natural outcrops, so this stone may have been brought here from an outcrop.