That mound is gone now, or rather, it has vanished so completely into the reclaimed grassland to the west of a small stream that no surface trace of it remains at all. The monument in question is a fulacht fia, a type of prehistoric cooking site found in enormous numbers across Ireland, typically identified by the horseshoe-shaped mounds of fire-shattered stone that accumulate beside the trough over years of repeated use. Here, even that tell-tale signature has been erased.

MacMahon recorded two fulachtaí fia in this townland in 1991, and the Ballagh site is the less conspicuous of the pair. A local resident who had moved into the area knew nothing of a monument at this precise location, though they had heard accounts of efforts to preserve a mound roughly 220 metres to the north-north-east, at the bottom of the same field. The burnt material visible there had been interpreted by some as the residue of a lime kiln, a small industrial structure used historically to reduce limestone to quicklime for agricultural use, and an easy thing to confuse with the scorched debris of a prehistoric hearth site. That area is now forested, and no trace of the mound survives there either.