A ring barrow is a prehistoric funerary monument, typically consisting of a low central mound or flat interior enclosed by a circular ditch and an outer earthen bank, and this one at Donaskeagh is a particularly modest example. The whole circular area measures just over four metres across, with the enclosing fosse barely ten to fifteen centimetres deep and the surrounding bank rising only a tenth of a metre above the interior. It is the kind of monument that demands attentiveness rather than spectacle.

The monument sits on a slightly raised, sub-oval platform of ground, roughly seventeen metres north to south and fourteen metres east to west, edged by a low scarp that lifts it just clear of the surrounding pasture. This positioning on higher ground, even ground this subtly elevated, is fairly typical of prehistoric burial sites, where the choice of a slightly prominent spot may have carried as much symbolic weight as practical drainage advantages. The interior is level and grass-covered, with a small area of marginally higher ground just to the north-east. A dense thicket of furze, running six to eight metres deep along a field boundary roughly fourteen metres to the north-east, and a separate enclosure approximately sixteen metres to the south-west, mean the ring barrow sits within a cluster of features that together suggest this corner of Tipperary was once a more structured, and possibly significant, piece of ground.