A ringfort, or rath, is an enclosed farmstead of early medieval Ireland, typically defined by one or more earthen banks thrown up around a domestic interior. Here, the enclosure sits on an east-facing slope in pasture, and the figures tell a story of gradual loss. When Bowman documented the site in 1934, he described an oval double-ramparted fort measuring 36 yards by 22 yards, with roughly one-sixth of each rampart still intact. What that fraction implies is considerable erosion already underway by the time anyone thought to write it down.

The site appears on the 1842 Ordnance Survey six-inch map as a hachured oval enclosure with a bank overlapping to the south-south-west, the standard cartographic shorthand of the period for earthworks of this kind. By the 1938 revision, the picture had shifted: overlapping banks were hachured to the south-west, the enclosure shown open to the north-west, with a scarp running from north-north-east down to the south. More recent measurement puts the surviving enclosed area at roughly 32 metres by 27.8 metres. The earthen bank, running from south-south-east around to the west, stands just 0.55 metres on the interior face and 0.8 metres on the exterior. To the north-north-east and south, a scarp reaches a maximum height of 2.2 metres, suggesting that the natural slope has been cut or shaped as part of the original design. Where the bank overlaps at the south-south-west, a stretch of about 8 metres is separated from the main circuit by an intervening fosse, the term for a defensive ditch, hinting at the more elaborate double-ramparted arrangement Bowman described. Comparing the 1842 and 1938 maps side by side, it is possible to trace, in outline at least, how the monument shifted in both form and legibility across less than a century of agricultural use.