No earthwork survives, no visible bank or ditch, no trace at ground level of what once stood here. The field retains its name and its reputation, but the thing that earned them has been gone for well over a century.

A ringfort, sometimes called a rath, was a circular enclosure typically defined by one or more earthen banks and ditches, used during the early medieval period in Ireland as a farmstead or place of habitation for a single family or small community. Thousands survive across the country, but many thousands more do not. The one at Killybressal was destroyed around 1900, most likely cleared to improve agricultural land, a fate that befell a great number of such sites during the nineteenth and early twentieth centuries. The site sat on a local rise, which was a common choice for such enclosures, offering both drainage and a degree of visibility across the surrounding land. Its existence is recorded in the Irish Folklore Commission Schools' Manuscripts, a collection gathered in the late 1930s when schoolchildren across Ireland were asked to document local lore and landmarks from older community members. That record preserved the memory of the fort even as the physical structure was being lost, and local knowledge has kept the name of the field alive in the decades since. The precise location within that field is no longer known.