Humans have utilized stone as an essential, long-lasting building material for millennia. The Stone Trust Center of southern Vermont offers an expanding program of educational events, workshops and outreach projects dedicated to the preservation and advancement of the ancient art and craft of dry stone walling. In this episode of Nature Revisited, we meet the students and staff of The Stone Trust and learn how they are engaged in preserving the natural use of plentiful stone in simple, gratifying ways.