But if you restrict your definition to single-trunked trees, then the General Sherman sequoia tree in Giant Forest holds the title as the largest living specimen on earth. It is 275 feet (83 m) tall with a massive trunk 36.5 feet (11.1 m) in diameter and 109 feet (33 m) in circumference at the base. Even more remarkable is the fact that at a point 120 feet (36 m) in the air the trunk of General Sherman is still 17 feet (5 m) in diameter.