Photo by Diana Davies, Ralph Rinzler Folklife Archives.Ashe County, which touches the Tennessee and Virginia borders, is touted by residents — many of them part-time dwellers who are otherwise “city folk” — as the “coolest corner of North Carolina.” And indeed, the year-round temperatures are lower owing to the higher elevations and what seems, in those neighborhoods of cabins now sprouting in the mountains, like thick, tall trees that create a perpetual shade.