The result is a subrectangular earthen enclosure, roughly 18 metres north to south and 13.5 metres east to west, sitting on a natural platform whose edges do much of the defensive work on their own. On three sides, east, south, and west, a low earthen bank reinforces what the topography already provides, running to about a metre in height and no more than a metre and a half wide. It is modest in scale, but its position is deliberate, the kind of placement that rewards a careful look at the landscape rather than the monument itself.

What makes the entrance particularly worth noting is its construction. Rather than a simple gap in the bank, the opening is formed by one terminal curving inward and the other curving outward, creating a short funnelled track about 1.6 metres wide. This in-turned entrance type is a recurring feature of early enclosures in Ireland, and it controls movement in a way that a plain break in a wall does not. The enclosure was already old enough to be recorded on the Ordnance Survey's six-inch map of 1838, where it appears marked with hachures, the cartographic shorthand surveyors used to indicate earthworks and raised features. Its age beyond that point is not precisely known, but earthen enclosures of this form in Ireland generally belong to the early medieval period, used as farmsteads, stock enclosures, or modest defended settlements.

The setting along the King's River valley gives some sense of why this particular platform was chosen. Water on two sides, a controlled entrance on the third, and a low bank completing the circuit; it is a small, practical arrangement that reads clearly once you understand what you are looking at.