There is a Bronze Age wedge tomb at Ballyedmonduff on the south eastern slope of Two Rock Mountain. It is known locally as the giants grave. It is a rectangular chamber divided into three parts surrounded by a U shaped double walled kerb filled with stones. The tomb was excavated in the 1940s by Seán P. Ó Riordáin and Ruaidhrí De Valera when cremated bone, a polished stone hammer, flints and pottery were found.