General Sherman is approximately 2,200 years old

Giant Sequoias [wiki] (Sequoiadendron giganteum), which only grow in Sierra Nevada, California, are the world’s biggest trees (in terms of volume). The biggest is General Sherman [wiki] in the Sequoia National Park – one behemoth of a tree at 275 feet (83.8 m), over 52,500 cubic feet of volume (1,486 m³), and over 6000 tons in weight.