By the time anyone thought to write it down formally, it was already gone, or nearly so, and today there is nothing at ground level to mark the spot at all.

The mill first appears on the Down Survey maps of Killiane parish, produced between 1655 and 1658 as part of a vast Cromwellian land census intended to redistribute confiscated Irish territory. The Down Survey was one of the earliest systematic cartographic projects in Ireland, and its barony and parish maps record the landscape in considerable, if sometimes approximate, detail. This windmill is noted in the accompanying terrier, the written commentary that accompanied the maps, and is already described there as decayed. By the mid-seventeenth century, then, it was a ruin. The structure was placed in what was then recorded as part of Great Killiane, an area that corresponds to the modern Sheepwalk townland. When the Ordnance Survey produced its six-inch maps in 1839, a windmill stump was still marked, this time sitting just across the townland boundary in Ballykilliane, which suggests the same feature had survived in some reduced form for nearly two more centuries, at least as a visible lump of masonry. That stump is no longer apparent at the surface, swallowed by the centuries of soil and grass that tend to reclaim even substantial stonework in the end.