The ringfort itself, the enclosure of earthen banks and ditches that once enclosed an early medieval farmstead, is gone from the northern half of the site, but the souterrain beneath it, a roofed underground passage of the kind used for storage or refuge, lingers on in partial form, curving quietly through the ground as if waiting for the rest of the archaeology to catch up.

A plan made by Costello in 1902 recorded the souterrain as it then stood, roughly L-shaped, with two chambers connected by a creep, the low narrow squeeze-point between sections that would have slowed any unwanted intruder considerably. By the time Costello returned to document it again in 1903, deterioration was already well advanced; he noted that only one large roofing flag remained in the first chamber, and that roughly half of the second chamber was still roofed. Today the first chamber has vanished entirely, and only a portion of the second remains. What does survive is substantial enough to read: a hollow running roughly west-south-west to east-north-east for about 7.8 metres, with traces of drystone walling along its north-west side, before curving gently and continuing on an east-west axis. That final stretch, around 6.5 metres long and 1.9 metres wide, remains intact, which makes it one of the more complete surviving sections of a structure that has been losing ground for well over a century.