A fulacht fia is essentially a prehistoric cooking or heating site, typically consisting of a trough dug into the ground, a nearby hearth, and the accumulated mound of fire-cracked stone that built up over repeated use as hot rocks were dropped into water to bring it to the boil. The mound at Gortavehy is a substantial one, measuring roughly sixteen metres north to south and thirteen metres east to west, placing it at the larger end of the scale for this type of site.

The area around this particular mound was, until recently, rough grazing land in the process of being reclaimed for agricultural use, which gives some sense of the marginal, waterlogged terrain these sites so often occupy. That preference for wet ground is no coincidence; fulachtaí fia are almost always found near streams, springs, or boggy hollows, precisely because a reliable water source was central to how they functioned. What makes Gortavehy especially noteworthy is the density of prehistoric activity in the immediate area: three further fulachtaí fia have been recorded in close proximity, suggesting this stretch of mid Cork saw sustained and repeated use over what may have been a considerable span of prehistoric time. Whether that reflects seasonal gatherings, communal food preparation, or some other organised activity is a question the archaeology alone cannot fully answer.