A fulacht fia is a prehistoric cooking site, typically identified by a horseshoe-shaped mound of heat-shattered stone and charcoal left behind after repeated episodes of fire-setting and water-boiling. The method involved heating stones in a fire and dropping them into a water-filled trough until the water reached cooking temperature, a process that gradually destroyed the stones and built up the characteristic dark, crumbly mounds that survive in fields and bogs across the country.

What makes this particular site quietly notable is that it does not stand alone. It belongs to a cluster of five fulachta fiadh in the same area, a concentration that points to sustained, repeated use of this stretch of the Garranekinnefeake landscape over what was likely a considerable span of prehistoric time. Such groupings are known elsewhere in Ireland and suggest that certain spots near reliable water sources were returned to again and again, perhaps seasonally, perhaps by communities moving with livestock. The site was recorded with the assistance of R.M. Cleary, whose personal communication provided the detail of the burnt spread on the stream's western side.