A fulacht fia is a type of prehistoric cooking or processing site, typically consisting of a horseshoe-shaped mound of fire-cracked stones heaped beside a trough that would have been filled with water and heated by dropping in stones from a fire. They are among the most common prehistoric monument types in Ireland, yet their precise uses remain debated by archaeologists, with brewing, bathing, and textile processing all proposed alongside the more obvious cooking explanation.

This example sits at the foot of Knocknaveen, known locally as Glan Hill, on the steep south-facing slope above enclosed land that was, until recently, covered in old grassed-over cultivation ridges. Deep ploughing brought the site to the surface, revealing a spread of fractured stone measuring roughly six metres east to west and five and a half metres north to south. It lies just seventeen metres south of the island's West Road, directly below a house associated locally with someone called Red John. What makes the location particularly striking is that it is not alone: another fulacht fia lies approximately 130 metres to the north-east, and a third sits around 160 metres to the west-south-west, suggesting that this corner of the island's basin was a focus for activity during prehistory in a way that the bare hillside gives little indication of today.