Location: White Mountains, California
Species: Bristlecone pine
Age: 5,069 years old
Good Old Hara was only discovered in 2013, becoming the oldest non-clonal living tree to have ever been found. Previously, the honor was held by a Nevada tree named Prometheus, which was 4,900 years old. The tree was tragically felled by a geography student in 1964.
Old Hara is not too far from its runner-up, Methuselah. You can certainly visit the White Mountains and try to find it, but the location of both trees is kept top secret to protect them from the jerks of this world.