This is what survives of a burnt mound, one of the most common yet least-celebrated monument types in the Irish archaeological landscape.

Burnt mounds are the accumulated debris of a process repeated thousands of times across prehistoric Ireland. Stones were heated in fire and then dropped into water-filled troughs or pits to bring the water to a boil, a technique used for cooking, bathing, or industrial processes such as working hides. The cracked, fire-shattered stones were discarded in a heap, and over centuries those heaps built up into low, often crescent-shaped mounds, typically found near a water source. At this site in Ballyglass Middle, the evidence sits exposed in the cut face of a north-south field boundary and in the sides of two flanking field drains, each slice through the ground showing that characteristic mix of burnt stone and blackened earth. What makes this particular location especially notable is the density of related monuments nearby: another burnt mound lies roughly ten metres to the west, and two further possible examples sit only five metres to the south-south-east, suggesting this boggy ground at the ridge base was returned to repeatedly, perhaps over a long span of prehistoric activity.