A granite mass east of Atlanta, Georgia, site of the Confederate Memorial Carving, the world's largest bas-relief sculpture, which features the figures of Jefferson Davis, Robert E. Lee, and Thomas "Stonewall" Jackson, all on horseback.
Definition of Stone Mountain in US English:
Stone Mountain
proper noun
A granite mass east of Atlanta, Georgia, site of the Confederate Memorial Carving, the world's largest bas-relief sculpture, which features the figures of Jefferson Davis, Robert E. Lee, and Thomas "Stonewall" Jackson, all on horseback.