At Knocknalyre in County Cork, a prehistoric upright stone was recorded early in the twentieth century and has since been removed, leaving behind only a brief written description as evidence it ever existed.

The stone does not appear on the Ordnance Survey six-inch maps of either 1842 or 1904, which raises an immediate question about its history: whether it was still buried, overlooked by surveyors, or simply absent from the mapped landscape during both of those surveys. What is known comes from a 1916 account by Condon, who recorded a stone four feet high and thirty inches wide, tapering noticeably from twenty-nine inches thick at the base to just a couple of inches at the top. That dramatic taper, narrowing from something almost blocky at ground level to a thin edge at the apex, gives a sense of a carefully shaped or deliberately selected piece of stone, the kind of upright that would have caught the eye in an open field. Standing stones of this type are found across Ireland and are generally thought to date to the Bronze Age, though their precise purpose remains debated; they may have marked boundaries, graves, or ritual sites. At Knocknalyre, the question is now largely academic. The stone has been removed, and its current whereabouts, if it survives at all, are unrecorded.