The site survives not as an earthwork you can walk around but as an absence, its circular bank long since levelled, and the evidence of quarrying from the west having removed most of what once stood on the crest of a gravel ridge in County Cork.

A ringfort, or rath, is a roughly circular enclosure defined by one or more earthen banks, typically built during the early medieval period as a farmstead or place of settlement. The Seehanes example was recorded on the Ordnance Survey six-inch map of 1944 as a circular enclosure of approximately twenty-two metres in diameter, which would place it at the smaller end of the scale for such sites. At some point after that mapping, quarrying ate into the western side of the ridge and took the bulk of the monument with it. What the quarrying inadvertently exposed, however, is a souterrain, an underground stone-lined passage or chamber that would originally have been concealed beneath or beside the ringfort. Souterrains are found across Ireland in association with early medieval settlements and were used variously for storage, refuge, or ventilation of subterranean spaces. This one is now visible in the quarry face, an unintended cross-section through a structure that was never meant to be seen from the outside.