Aerial photographs reveal a circular cropmark roughly 40 metres in diameter, the kind of subtle trace that emerges when crops growing over a buried ditch, or fosse, respond differently to dry conditions than the surrounding ground. The fosse that defines this enclosure is interrupted at the north-west, leaving a gap that most likely marks the original entrance to the site.

Ringforts, known in Irish as raths when defined by earthen banks and ditches, were the most common form of rural settlement in early medieval Ireland, typically serving as enclosed farmsteads for a single family and their livestock. Most date to roughly the sixth through tenth centuries, though some were built earlier or later. The Slad example sits on level ground, which is somewhat unusual; many ringforts were positioned on slight rises to improve drainage and visibility. That the fosse here appears as a cropmark rather than a raised bank suggests the original earthworks have been largely levelled, likely through centuries of agricultural activity. A second enclosure sits approximately 150 metres to the north-east, hinting that this part of Wexford once held a cluster of early settlement activity rather than a single isolated farmstead.