No mound, no hollow, no stone. And yet the 1936 Ordnance Survey six-inch map marks the spot with the notation "folacht fiadh (site of)", a label that quietly signals an ancient presence even as it concedes that the thing itself was already gone, or going, by the time anyone thought to record it.

A fulacht fia is a type of prehistoric cooking site found in considerable numbers across Ireland, typically consisting of a horseshoe-shaped mound of fire-cracked stone built up beside a trough or pit, often near a water source. The method involved heating stones in a fire and dropping them into a water-filled trough to bring it to boiling point, used for cooking, and possibly for other purposes including bathing or textile processing. The association with water is so consistent that fulachtaí fia are frequently found beside streams, springs, or, as here at Knockanevin, a well. That adjacency to a well is one of the few details that survives about this particular site, and it fits the pattern closely. What is less common is a site that has left no surface trace whatsoever, reduced entirely to a cartographic footnote on a map made nearly ninety years ago.