Yet this rath in Aggard Beg has endured well enough that its essential shape and structure remain legible in the landscape, which is more than can be said for many comparable sites.

A rath is a ringfort, one of the most common monument types in Ireland, typically consisting of a raised circular area enclosed by one or more earthen banks with a ditch, known as a fosse, running between them. This example measures just over thirty metres in diameter and is defined by two banks of earth and stone with an intervening fosse between them. The causewayed entrance gap at the south-south-east, roughly two metres wide, is the original point of access, a raised causeway spanning the fosse so that livestock and people could pass in and out without scrambling down into the ditch. The site was recorded by McCaffrey in 1952. The inner bank has been broken in several places by modern interventions, but the overall form holds. What makes the interior quietly interesting is the presence of cultivation ridges, the low parallel furrows left by spade or plough tillage, suggesting that long after the rath ceased to function as an enclosed settlement or farmstead, the ground inside it was being worked.