Today, what they mapped has largely disappeared into the ground, leaving behind little more than a faint raised area roughly 24 metres across and a barely traceable outline where a stone wall once stood.

The site belongs to a class of enclosure found widely across Ireland, circular areas defined by a stone boundary wall, sometimes serving as a defended farmstead, sometimes carrying ritual or territorial significance, the precise function often unclear at this distance in time. What the Roo example preserves, if only in ghost form, is the basic geometry of that tradition: a roughly circular interior, the wall now reduced to a discernible trace rather than any standing course, and an original entrance that can no longer be identified on the ground. Scrub growth has done the rest, softening what little topography remains.

For anyone who does find their way to it, the experience is less about seeing something than about reading a landscape for its absences. The raised ground, the faint arc of the old wall line, the label on a nineteenth-century map that once recorded something its compilers considered worth noting, these are the residues of a place that time has quietly, thoroughly erased.