This rath, sitting on the northern side of a narrow east-west ridge above the River Moy estuary, occupies a position that feels deliberately chosen. The ground to the north levels out briefly before dropping sharply to a stony shoreline, and on a clear day the views open north across the estuary into Killala Bay. The placement is typical of early medieval ringforts, the circular enclosed farmsteads that dot the Irish landscape in their thousands, but the shell-laced construction material is an unusual detail, suggesting whoever built the bank had ready access to the shoreline immediately below.

The structure itself is a raised circular platform, roughly 16 metres across, defined by a stony bank and surrounded by a fosse, the term for the defensive ditch that typically encircles such enclosures, with a lower external bank beyond that. The south half of the interior appears to have been deliberately built up to create a level floor, compensating for the natural slope of the ridge. The inner bank still stands to an external height of around 3.6 metres on its south-southwest side, though its internal face has degraded to little more than a low rim. An original entrance gap survives on the southeast, opening onto a causeway across the fosse and a corresponding break in the outer bank. Stones discernible along the inner edge of the bank may be the remnants of a kerb. The fosse and outer bank are well preserved through most of their circuit, though a quarry pit dug into the western slope of the mound and a later field fence to the north-northwest have each taken a piece out of the outer works. A second, smaller dished area about ten metres to the east of the rath also appears to be the product of quarrying. Roughly 140 metres further east along the same ridge stand a church and graveyard, suggesting this particular tongue of land above the Moy held significance across multiple periods.