A circular embanked enclosure, roughly thirty to thirty-five metres in external diameter, appears on the 1834 edition of the Ordnance Survey six-inch map, making a clear and confident mark on the landscape of that moment. By the time anyone looked carefully again, it was effectively gone.

What was recorded in 1834 was almost certainly a rath, the Irish term for a roughly circular earthwork enclosure, typically defined by one or more banks and ditches, and associated with early medieval settlement and farming. They are common across Ireland, though each one represents a household or small community that once organised its life within those earthen walls. At Ullinagh, a slight curve surviving in a field bank to the north-east and south-east offered a faint echo of the original shape, the kind of trace that a trained eye might read as the ghost of a former boundary. But even that was gone by 1995, removed as part of ordinary agricultural change. The 1834 map remains the most complete record of what was there.