The mill race, the artificial watercourse that once diverted a flow to drive the millwheel, remains legible in the landscape, but the building it served has left nothing behind, not a foundation course, not a dressed stone, nothing.

The first edition Ordnance Survey six-inch map, published in 1848, marks a T-plan building on this spot and names it the Turtulla Flour Mill. By the time the second edition was surveyed in 1952 and 1953, it had been dropped from the record entirely, suggesting the structure disappeared sometime in the intervening century. What local memory does preserve, faintly, is a stretch of wall that children knew as the Black Chapel, though no one now connects that fragment to a mill at all. The site may be considerably older than the 1848 map implies. The cartographer John Rocque, who mapped Thurles in 1755, marks an Old Mill at this same location, pointing to origins that could reach back into the seventeenth century. A mill of that age would have been a significant piece of rural infrastructure, processing grain for the surrounding townlands at a time when such facilities were central to how local economies functioned.