There is nothing to see at ground level; no earthwork, no stone, no marker. The only record of this ring-ditch comes from the air, captured in a cropmark on an aerial photograph taken in July 1989.

Cropmarks form when buried archaeological features affect the growth of whatever is planted above them. Ditches, once filled with looser soil, retain more moisture, producing slightly taller or greener crops in dry conditions, while buried walls or compacted surfaces have the opposite effect. The result, visible only from altitude and usually only in dry summers, is a ghostly outline of something long since levelled. In this case, the outline is a ring-ditch, a roughly circular trench that in Irish prehistory was commonly associated with burial or ceremonial activity, sometimes the remnant of a round barrow whose central mound has been ploughed flat over centuries. The Foulksrath example measures approximately ten metres in diameter, which places it within the typical range for such features, though without excavation its date and precise function remain open questions.