The exposed structure reveals a northern end chamber measuring approximately 1.5 metres in length internally, which widens from one metre at its outer entrance to 1.5 metres near the backstone. The western side chamber extends about one metre long and 0.8 metres wide, whilst the eastern chamber appears to have been similarly proportioned, though only partially survives. The tomb once sat within a low round mound measuring roughly 18 metres in diameter, according to observations made by the late P.J. Hartnett of the National Museum, Dublin.

The site has an intriguing history of archaeological interest and some confusion in historical records. When unauthorised digging occurred here in 1955, both burnt and unburnt human bones were uncovered, suggesting the tomb served its intended purpose as a burial place for ancient communities. The monument appears in W.F. Wakeman’s 1878 sketch as a ‘ruined cromleac’, and researchers have since worked to untangle references to this site from mentions of other megalithic structures in the area, particularly a separate court tomb that remains unlocated in the same townland.

This passage tomb represents one of many such monuments scattered across County Donegal, forming part of Ireland’s rich prehistoric landscape. These structures, typically dating from around 3500 to 2500 BCE, were communal burial places that required considerable effort to construct, involving the movement of large stones and the creation of earthen mounds. The cruciform plan, with its central passage and side chambers forming a cross shape, is a distinctive feature of Irish passage tomb architecture and suggests complex burial rituals and beliefs about death and the afterlife amongst Ireland’s earliest farming communities.