The example that survives in a disused quarry at Coolroe, County Limerick, sitting just 24 metres east of the townland boundary with Proonts, is one of the more evocative remnants of that industry. What makes it worth a second look is not its scale or grandeur but its social history: this was a place where neighbours gathered, where lime was bought and carried home, and where the annual ritual of whitewashing began.

Known locally as Hannon's limekiln, the structure dates from after 1700 and appears on the Ordnance Survey six-inch map of 1840, which suggests it was already a well-established feature of the landscape by the time the surveyors came through. By the 1897 edition of the OSi 25-inch map, it is explicitly annotated as a lime kiln, confirming its continued operation across most of the nineteenth century. Mainchin Seoighe, writing in 1987, recorded that up to the late 1930s people came from far and near to Hannon's limekiln at Quarry Hill to buy lime for the whitewashing of their houses, outhouses, piers, and walls. That detail, the range of the clientele and the variety of surfaces they were treating, gives a sense of how central this single rural kiln was to the upkeep of an entire surrounding community.

The kiln is now overgrown, visible on satellite orthoimages captured between 2011 and 2013, which means the vegetation has had at least a decade or more to work its way further into the stonework. Anyone visiting should expect a structure that requires some searching out within the old quarry setting, and should be prepared for rough, uneven ground. The quarry location at Coolroe, close to the Proonts townland boundary, is the clearest navigational reference available. There is no formal access or interpretation on site, so the visit rewards patience and a willingness to read the landscape rather than rely on signage.