A fulacht fia, sometimes called a burnt mound, is one of the most common prehistoric monuments in Ireland: a horseshoe-shaped mound of fire-cracked stones and charcoal-rich earth, the byproduct of an ancient cooking or heating method in which stones were repeatedly heated and dropped into a water-filled trough. They survive in their thousands across the country, yet this particular one has slipped below the surface and out of sight.

The record of its existence comes from Bowman, writing in 1934, who placed it on land belonging to a J. Ahern, roughly eighty yards north of a ringfort. A ringfort, to give it its context, is a circular enclosure defined by an earthen bank and ditch, the typical farmstead of early medieval Ireland, and they were often built in landscapes already layered with earlier activity. When fieldworkers later went to inspect the area north of that ringfort, they found no visible surface trace. The exact location remains unknown.