It is the kind of erasure that happened quietly, without record or ceremony, leaving behind just enough to confirm something was lost. The 1912 edition of the six-inch Ordnance Survey map still shows a circular feature roughly eight metres in diameter on a gentle south-facing slope, a modest but legible trace of a structure that had, by then, already survived for several thousand years.

At some point after that 1912 survey, the circle was removed, and the laneway, oriented east to west, was laid directly through the site. Three large roughly rectangular boulders now lie to the south of the lane, each averaging around one and a half metres in length and a metre wide, with a reported thickness of three and a half metres. These may be survivors from the original monument, displaced and left where they came to rest rather than broken up or carted away. Stone circles of this kind are generally understood to date to the Bronze Age, though their precise function remains a matter of scholarly debate; what is consistent is that their placement in the landscape was rarely accidental. The site at Kiltycahill sits on a slope with broad views ranging from the southeast to the west, taking in Lough Gill and Sligo Town, a sightline that feels deliberate even now.