The mound is described as a
Linkardstown-type
cist but may be a simple passage grave. It consists of a round mound encircled by two low wide banks with internal ditches giving an overall diameter of 90 m (100 yd). The inner mound is 26 m (30 yd) in diameter with a
cairn core covered in clay. The megalith is trapezoidal in shape, 5m long and narrowing from 2.3m wide at the SE to 1.3 m at the NW (open) end. It was built around a
limestone erratic which serves as a floorstone. ==References==