The burnt spread at Garranroe, in County Limerick, offers none of that. It is, by every available measure, invisible: no surface trace, no mark on aerial photography, no outline on the Ordnance Survey's historic maps. What exists instead is a category, a co-ordinate, and a fragment of local memory.

A burnt spread is exactly what the name suggests: a concentration of fire-cracked stones and charcoal-rich soil, typically the remnant of a fulacht fiadh, the type of site once interpreted as a Bronze Age cooking place where water was heated by dropping fire-heated stones into a trough. The Garranroe example came to light not through excavation but through land reclamation, when agricultural work disturbed the ground and revealed what lay beneath. By the time the Archaeological Survey of Ireland recorded it in 2000, surveyors noted no surface remains visible, a phrase that appears in the official record with a quiet finality. Subsequent aerial photography, including Digital Globe imagery from 2011 to 2013 and a Google Earth image from June 2018, confirmed there was nothing left to see from above. The site sits on a gently undulating north-facing slope about 40 metres south of a watercourse that also marks the townland boundary between Garranroe and Ballygeale. The survey record was compiled by Alison McQueen and Vera Rahilly and uploaded in August 2020.

For anyone determined to visit, the experience will be more meditative than revelatory. The ground here gives no outward sign of what was once uncovered beneath it, and the surrounding landscape, with reasonable views to the west, north-west, and north, is the main thing that registers. The watercourse nearby, modest enough to double as a boundary line rather than a named river, is worth locating as a rough navigational marker. There is no formal access, no signage, and no visible feature to orientate around once you arrive. What the site offers, if anything, is a useful reminder of how much of the Irish prehistoric record exists only in databases, recovered briefly and then swallowed again by the ordinary work of farming.