It is a fulacht fia, a type of prehistoric cooking site found in enormous numbers across Ireland, typically identified by a mound of fire-cracked stone and charred earth left behind after repeated episodes of heating water by dropping hot stones into a trough. They date most commonly to the Bronze Age, though some are earlier or later, and they tend to cluster near water sources, which makes the stream to the west of this site entirely typical.

What makes the Kilpatrick site quietly remarkable is not the single spread itself but what surrounds it. The same field contains at least four other comparable spreads of burnt material, each recorded as a separate site. Fulachta fia do sometimes occur in clusters, suggesting that certain locations were returned to again and again, perhaps over generations, or that groups of people used adjoining sites simultaneously. The concentration here, five spreads in close proximity on one sloped field beside a stream, offers an unusually dense picture of repeated prehistoric activity in a small area of west Cork, even if the ground itself gives little away to the casual eye.