At Glashaboy in County Cork, a fulacht fia has been levelled almost entirely out of existence, surviving only as a dark stain of burnt material visible in cross-section where the ground has been cut through on a north-south line. It is the kind of site that passes unnoticed even to those who walk directly past it.

Fulachtaí fia, sometimes translated loosely as "cooking places of the deer," are the remains of ancient outdoor cooking sites, typically Bronze Age in date, consisting of a trough, a hearth, and a mound of fire-cracked, heat-shattered stone. The process involved heating stones in a fire and dropping them into a water-filled trough to bring the water to boiling point, after which meat could be cooked. Over repeated use, the spent, broken stones were piled to one side, forming the characteristic low horseshoe-shaped mound that survives at thousands of sites across Ireland. At Glashaboy, that mound is gone. Farming and field clearance have done their work, and a dump of field clearance stones to the west of the section suggests the land has been tidied and reworked over a long period. What remains is essentially a geological footnote, a buried trace rather than an upstanding monument.