It is, in fact, the front face of a limekiln, a structure most people pass without recognising, yet one that once played a central role in the agricultural economy of rural Ireland.

A limekiln was used to burn limestone at high temperatures, producing quicklime that farmers spread across acidic fields to improve soil fertility. This particular example, dating from the mid to late nineteenth century, was built directly into a steep slope, a common technique that allowed workers to load limestone and fuel into the top of the kiln from above while drawing the burnt lime from the arched opening at the front. The front wall, constructed from random rubble masonry, measures two and a half metres wide and runs roughly two and a half metres from east to west. Despite the modest footprint, the structure would have been a working feature of the local farming landscape during a period when small-scale lime burning was widespread across Kerry and much of the country. The top of the kiln is now overgrown, which is not unusual for structures of this kind that fell out of use once imported fertilisers became more widely available in the twentieth century.