This one is notable for what does not. At Lismacteige in County Clare, somewhere beneath a tangle of hazel and scrub, there is supposed to be a fulacht fia, one of the enigmatic cooking sites found in their thousands across Ireland. The typical fulacht fia consists of a horseshoe-shaped mound of fire-cracked stone surrounding a trough, where prehistoric people heated water by dropping in stones heated in a fire, then used the boiling water for cooking, and possibly for other purposes still debated by archaeologists. At Lismacteige, however, no surface trace of any such feature survives. The vegetation has swallowed whatever was once here.

The site entered the record not through excavation or field survey but through cartography. Tim Robinson, the writer and mapmaker whose painstaking surveys of the west of Ireland produced some of the most detailed and culturally attentive maps of any Irish landscape, marked a fulacht fia at this location on his 1997 map of the Burren. Robinson's maps were famous for gathering local knowledge, placename lore, and landscape features that formal surveys sometimes missed or passed over, so his noting of this site carries a certain weight, even if the ground itself offers nothing visible to confirm it.