It is unremarkable to the casual eye, easily mistaken for a patch of disturbed ground or agricultural debris. But this discolouration in the soil is the remnant of a fulacht fia, one of the most common and least understood monument types in the Irish landscape. Fulachtaí fia are ancient cooking sites, typically Bronze Age in origin, where water was heated by dropping fire-cracked stones into a trough or pit. The stones, shattered by repeated heating and quenching, accumulated into the distinctive mounds of blackened, crumbly material that survive in their thousands across Ireland, often in low-lying ground near water sources.

The site at An Tseanchluain sits on the northern side of a drainage channel, exactly the kind of damp, marginal ground where these sites characteristically appear. The proximity to water was not incidental; the whole process depended on a ready supply. Burnt material is visible not only in the spread across the field but also within the field fence itself, suggesting the monument extends beneath or through the boundary, its full extent partly obscured by later land management. The site was noted on a map produced by the UCC Archaeology Department, which places it within a broader tradition of systematic field recording that has gradually brought hundreds of such sites in County Cork into clearer focus.