The rath, a type of ringfort formed by an earthen bank rather than stone walling, sits close to the western edge of a raised area of undulating pasture at Carrowhubbuck, its circular outline still clearly legible in the field.

The earthen bank encloses a roughly circular area measuring around 27 metres across, with the bank itself running between three and three and a half metres wide. The height varies noticeably depending on which side you approach: at the east it stands around 1.4 metres on the exterior face, dropping to about 0.9 metres on the western side, while the interior is comparatively low, only 0.2 to 0.4 metres above the enclosed ground. A gap of two to three metres in the bank on the eastern side marks the original entrance, the direction most Irish ringforts faced. More intriguing still is an opening near the inner face of the bank on the northern side, which leads into a souterrain, an underground stone-lined passage or chamber of the kind typically used in early medieval Ireland for storage or as a place of refuge. The combination of a well-preserved entrance, measurable earthworks, visible shell inclusions, and an accessible souterrain opening makes this a relatively legible example of a site type that survives in thousands of variations across Ireland, though rarely with quite this cluster of readable details in one small enclosure.