To a passing eye it might read as a natural rise in the ground, but the material it is made from tells a different story: the mound is composed entirely of burnt stone, fire-cracked and blackened, accumulated over repeated use into a spread nearly twenty-eight metres across.

This is a fulacht fia, a type of site found in large numbers across Ireland and dating most commonly to the Bronze Age, roughly 1500 to 500 BC. The basic technology involved heating stones in a fire, then dropping them into a water-filled trough to bring the water to a boil. The stones shatter with thermal shock and are discarded, and over time these discarded fragments build up into the characteristic horseshoe or oval mound that survives in the landscape. What exactly fulachtaí fia were used for remains debated: cooking is the most widely accepted explanation, but experimental work has suggested they could also have served for brewing, textile processing, or bathing. Whatever the purpose, the mound at Dawstown is a substantial one, indicating sustained or repeated activity at the spot. The choice of location beside a stream would have been deliberate, providing a reliable water source for filling the trough. A second fulacht fia lies approximately fifty metres to the south-east, which is not unusual; these sites often cluster, perhaps reflecting the repeated return of people to a place that was already associated with this kind of communal or practical work.