. "The Piedmont Triad (or simply the Triad) is a north-central region of the U.S. state of North Carolina that consists of the area within and surrounding the three major cities of Greensboro, Winston-Salem, and High Point. This close group or \"triad\" of cities lies in the Piedmont geographical region of the United States and forms the basis of the Greensboro-Winston-Salem-High Point CSA. The area of the triad is approximately 5,954 square miles."@en . .