Portal tombs, sometimes called dolmens, are among the oldest megalithic monuments in Ireland, typically dated to the Neolithic period and understood as burial structures, their defining feature being two tall upright stones forming a portal or entrance at one end. This one is compact, its chamber measuring just 1.3 metres square, and it faces uphill to the north-west, which is itself an unusual orientation given that portal tombs more often open towards the south or east.

The structure survives in a disordered state. The roofstone, which would once have capped the chamber, has slipped and now rests against the northern sidestone rather than sitting above the uprights. The doorstone is broken and leans to the south-east, propped against the backstone. A large block of stone sits between the two portal stones, though it may be a later intrusion rather than an original element of the tomb's design. Two low stones placed in front of the eastern portal stone add further ambiguity; their purpose and whether they were always part of the monument is unclear. Researchers T. G. E. Powell and Liam Price both noted the site in the 1930s and 1940s, making it a place of scholarly attention well before many of Wicklow's monuments received systematic documentation.