In a pasture on a north-facing slope in Russagh, County Cork, there was once a ringfort, the kind of roughly circular earthwork enclosure that served as a defended farmstead during early medieval Ireland, typically enclosed by one or more banks and ditches. By the time anyone thought to record its exact condition, it had already been levelled and planted with trees, leaving no visible surface trace whatsoever. The place exists now almost entirely as an absence.

The Ordnance Survey map of 1842 marked the site as a circular enclosure, which is often how cartographers of that era captured ringforts when they still retained enough form to be recognisable from the ground. At some point after that survey, the earthworks were removed, the land returned to pasture, and trees planted over what remained. A nearby ringfort and Liss Ard House lie to the south-west, and the name Liss Ard, meaning high enclosure or high fort in Irish, hints at how thoroughly this kind of site once shaped the local landscape and its placenames, even when the physical structures themselves have long since gone. The Russagh ringfort is one of many such casualties, its story preserved only in a nineteenth-century map line and a terse archaeological note.