The ground gives nothing away. No bank, no ditch, no raised outline, nothing that would cause a passing walker to pause. And yet in 1839, when the Ordnance Survey crews were working their way across County Wexford producing the first detailed six-inch maps of the country, they recorded it precisely: an irregularly-shaped embanked enclosure, roughly 45 metres from north to south and 45 metres from east to west, sitting on a slight shelf of a north-facing slope.

An embanked enclosure, in the broadest sense, is simply an area of ground defined by a constructed earthen bank, used across many centuries in Ireland for purposes ranging from settlement and agriculture to ritual or boundary-marking. What makes the Bolany example quietly interesting is its position. It occupies a natural terrace on the slope, with the headwaters of the east-west Blackwater stream running roughly 650 metres to the north and some 60 metres below. That relationship between the enclosure and the water below it, the slight elevation, the overlooking aspect, suggests a deliberate choice of ground by whoever built it. Whether the structure was early medieval, prehistoric, or something else entirely, the notes do not say, and the surface today offers no clues. The 1839 map preserves a shape that the landscape itself has since absorbed completely.