What survives is a souterrain, the remains of an early medieval underground stone-lined passage and chamber, typically built beneath or close to a rath, the circular earthwork enclosure that served as a farmstead during Ireland's early Christian period. Souterrains were used variously for storage, refuge, or both, and their construction required considerable effort. This one is no exception, though much of it has been destroyed.

The souterrain sat roughly four metres northwest of the centre of a nearby rath. Its subcircular chamber measured approximately 4.4 metres by 3.6 metres internally, though it now survives to a depth of only around 0.4 metres. From the chamber, a passage extended southwest for some nine metres, reaching almost as far as the bank of the rath, before turning south for a further 7.5 metres. At its widest the passage top measured three metres across. What this layout suggests is a deliberate and considered structure, tucked against the boundary of the enclosure, with the passage following the geometry of the rath bank as though designed to remain hidden within it. The whole complex is now destroyed to the point where the dimensions can only be inferred from what remains in the ground, shallow impressions of something that once ran deep.