4 1/2-mile Methuselah Trail from the Schulman Visitor Center past groves of the world's oldest living trees. The location of the Methuselah Tree, the oldest living tree in the world, estimated to be over 4,750 miles, is kept a secret for fear of someone cutting it down. The twisted and contorted shapes of these trees are both beautiful and a testament to their toughness in surviving adverse living conditions.