The rath at Ballynaraha sits on the east-facing slope of a gentle north-south ridge in County Tipperary, and where a more labour-intensive construction might have dug and banked uniformly around the full circuit, here the eastern side simply borrows the natural drop of the ridge itself. The result is an enclosure that reads differently depending on which direction you approach it, the scarp dropping nearly 1.8 metres on the downslope side but barely a third of a metre on the south.

A rath is the commonest type of ringfort found across Ireland, typically a roughly circular area of raised ground enclosed by one or more earthen banks and ditches, used as a farmstead during the early medieval period. This example measures about 22 metres north to south and just under 21 metres east to west, with a fosse, the external ditch cut into the ridge, running around the circuit at a width of roughly 2.1 metres. Three natural pools lie close to the monument, two to the north-east and south-east and a third, about 6 metres across, at the base of the western scarp. The entrance, set in the eastern quadrant between the two eastern pools, is a ramped approach roughly 7 metres wide that narrows as it reaches the exterior, a funnel shape that would have made access controlled and deliberate. Whether the pools were a practical consideration in siting the entrance between them, providing water while limiting easy approach from those directions, is not something the physical remains can settle, but the arrangement is striking.

The interior today is largely grass-covered, though cattle have disturbed the ground in places and the scarp has lost much of its definition. Scrub and brambles have taken hold along the south-east edge, in the centre, and along the northern side, where post-and-wire fencing now marks a field boundary running east to west across the northern quadrant. These layers of agricultural use sit on top of one another in the way they often do with such sites, the early medieval enclosure, the post-medieval field system, and the modern pasture all occupying the same quiet slope on the ridge.