A ringfort, or rath, is a roughly circular earthen enclosure built during the early medieval period, typically used as a farmstead and defended by one or more earthen banks. This one measured approximately 22 metres in diameter, modest even by the standards of the type, and what survives today is only a fragment of what was already a diminished structure when anyone was last paying close attention.

The 1842 Ordnance Survey six-inch map shows the fort as a complete hachured circle, a conventional cartographic shorthand for a raised earthen enclosure. By the time the 1934 edition of the same map was produced, only the western half remained legible as a semicircular raised area, the eastern portion having been lost to a north-south field boundary that bisected the site. Somewhere within the surviving western arc lies a souterrain, an underground stone-lined passage associated with early medieval settlement, used variously for storage, refuge, or ventilation of adjacent structures. The field boundary that cut the fort in two has since been levelled, but the levelling brought its own damage, with material deposited directly onto the area of the site rather than cleared away carefully.