Since 2014, residents of County Donegal, Ireland, have mounted a remarkable annual gathering: the Tír Chonaill Stone Festival. Founders imagined it as a way of celebrating and continuing traditional stone skills such as dry stone walling and stone carving. Festival attendees leave behind a legacy of stonemasonry, created on site as part of the weekend’s activities, usually taking the form of newly constructed or repaired stone walls and public art pieces. The festival has been held in a variety of locations in the county, but one memorable year saw the creation…