It measures eleven metres in length and just under a metre in height, modest dimensions that give little away about its function. This is a fulacht fia, a type of prehistoric cooking site found in enormous numbers across Ireland, typically Bronze Age in date. The classic interpretation is that such mounds are the burnt and discarded residue of a repeated process: stones were heated in a fire, then dropped into a water-filled trough to bring it to the boil, and the cracked, fire-shattered fragments were cast aside over time, building up into the characteristic horseshoe form around the trough.

The mound at Reencorreen follows that familiar shape, with its opening facing northwest at a width of nearly six metres. The two arms are not symmetrical; the south-western arm is noticeably longer than the north-western one, and cattle activity has broken into and disturbed that side of the structure. What makes this particular spot quietly notable is that it does not stand alone. A second fulacht fia lies approximately forty metres to the south-west, suggesting that this corner of West Cork saw repeated or sustained prehistoric use, whether for cooking, communal gathering, or some other purpose that drew people back to the same waterlogged ground over generations. The clustering of fulachta fia is a pattern seen elsewhere in Ireland, and while the reasons remain a matter of archaeological debate, paired or grouped sites like these hint that the activity involved was more than purely incidental.