No spring emerges, no stone surround marks the spot, no votive offerings hang from a nearby thorn bush. The well sits somewhere along the northern side of a field fence, its opening recorded at roughly a quarter of a metre above ground level, and it leaves no surface trace whatsoever. That a place with no physical presence should still be recorded, still located with such quiet precision, says something about how seriously these sites have been taken in Irish rural life.

Holy wells have functioned for centuries as focal points of local devotion, often pre-Christian in origin and later absorbed into Catholic practice, associated with patron saints, cures, and the rounds known as patterns. Many survive as modest but identifiable features: a stone-lined recess, a shallow pool, a few offerings left by visitors. The well at Knockanreagh appears to have been simpler than most, and whatever structure or visible feature it once had has since disappeared entirely. What is notable, though, is that it was used within living memory, meaning it remained a known and visited place into the modern era, even as it left no mark on the landscape that a stranger could find.