Who carved stone mountain GA?

The Confederate Memorial Carving, depicts three Confederate heroes of the Civil War, President Jefferson Davis and Generals Robert E. Lee and Thomas J. "Stonewall" Jackson and is largest high relief sculpture in the world. The carved surface is three-acres, larger than a football field. The carving of the three men soars 400 feet above the ground, measures 90 by 190 feet, and cuts 42 feet into the mountain.