In 2019, refined scientific dating methods resulted in a new age estimate for the Grizzly Giant: 2,995 years old (plus or minus 250 years). Giant sequoias are the third longest-lived tree species with the oldest known specimen to have been 3,266 years old in the Converse Basin Grove of Giant Sequoia National Monument. (Note: Giant sequoias are only outlived by bristlecone pines—oldest aged at 4,844 years in the Great Basin—and by Alerce trees—oldest aged at 3,639 years in Chile.) Yosemite’s famous Grizzly Giant in the park’s Mariposa Grove is best estimated to be about 3,000 years old plus or minus a few centuries, which is nothing to a giant sequoia.