This one, in the Aghavannagh valley of south Wicklow, breaks that pattern entirely. It occupies low ground near the confluence of the Aghavannagh River and a smaller stream, tucked into the valley floor rather than commanding it. That choice of position is quietly puzzling, and it gives the site a character distinct from the thousands of similar enclosures scattered across higher ground elsewhere in the country.

The rath, as this type of earthwork enclosure is also known, takes a circular form roughly 28 metres in diameter. Its defining bank, standing about 1.25 metres high, is built from earth and stone, with drystone wall-facing on its outer face and some stone-facing on the interior as well. What sets it apart further is the entrance on the western side, where stone steps approximately one metre wide have survived. These steps are thought to represent the original point of access, a rare survival of what would once have been a deliberate and probably quite formal threshold. Unlike the majority of ringforts, this one shows no trace of a fosse, the defensive ditch that typically runs around the outside of the bank. Inside, there are no structural remains of the kind usually associated with early settlement. What does survive, unexpectedly, are the remains of four corn ricks, suggesting the enclosure was put to agricultural use at some point in its later life. The site appears on the Ordnance Survey six-inch map of 1838, confirming it was a recognisable feature of the valley landscape well into the nineteenth century.