What survives is a raised circular area roughly 46 metres across, enclosed by an earthen bank some five metres wide and rising nearly one and a half metres on its outer face. It is not large by any dramatic measure, but it is coherent, and the detail of what remains repays close attention.

A rath, or ringfort, was typically a farmstead of the early medieval period, enclosed by one or more circular earthen banks and ditches to define a boundary and offer a degree of protection for a household and its livestock. The Rathgallen example shows signs of more internal complexity than a casual glance might suggest. The interior does not simply sit flat within the bank; it rises gradually inward to a further raised platform, roughly 36 metres across, which tilts slightly downward toward the south-east. One reading of this arrangement is that an inner bank once stood here, separating the outermost zone from the central area, and that this inner bank has since been levelled, leaving a slight depression that may represent the filled remains of an intervening fosse, a ditch, between the two. A steep drop near the eastern edge of the interior adds to this picture of a site that was probably more elaborately constructed than its present gentle silhouette implies. There is also some evidence of modification to the exterior of the bank on its eastern side, though what that modification involved is not clear. What makes the setting additionally striking is that two further ringforts lie within direct line of sight: one approximately 135 metres to the north-west, another about 285 metres to the south-east. This kind of intervisibility between ringforts is not unusual in Ireland and may reflect deliberate siting by neighbouring families or communities, though the precise social relationships involved remain a matter of interpretation rather than record.