A fulacht fia, the term used for a type of ancient outdoor cooking place typically identified by a horseshoe-shaped mound of fire-cracked stones beside a water source or trough, once sat around fifteen metres west of a local well. By the time anyone thought to record its absence in detail, a trackway had been cut directly across the site, and the mound itself had been levelled. There is no visible surface trace remaining.

The site was recorded on an Ordnance Survey six-inch map made in 1937, which means the mound was still present, or at least mappable, at that point. At some time between that survey and more recent fieldwork, it was lost. What makes Lackaroe particularly notable in a quiet way is not the site itself but its company: a second fulacht fia sits immediately to the north. Finding two such sites in close proximity is not unheard of, since fulachtaí fia often cluster near reliable water sources, and the well nearby would have made this patch of ground attractive to people cooking or processing food over many centuries of prehistory. The pairing hints at repeated use of a favoured spot, even if the physical evidence for both sites is now severely reduced.