Monroe (tree) across the base. Monroe (tree) Monroe is a huge giant sequoia tree in Giant Forest, a sequoia grove where the largest tree in the world lives - the General Sherman. The Monroe tree is the tenth largest giant sequoia in the world. It was named by Wendell Flint. Nearby trees include the Washington Tree which was once the second largest tree in the world, but since it lost half its trunk in 2005 many sequoias are now larger. The Monroe tree has dull bark and no distinguishing features except for its great size and massive top. It was measured in
Hyperion (tree) Hyperion (tree) Hyperion is the name of a coast redwood ("Sequoia sempervirens") in California that was measured at , which ranks it as the world's tallest known living tree. Hyperion was discovered August 25, 2006, by naturalists Chris Atkins and Michael Taylor. The tree was verified as standing tall by Stephen Sillett. The tree was found in a remote area of Redwood National and State Parks purchased in 1978. It is estimated to contain of wood. The Park also houses the second tallest tree "Helios", and the third tallest "Icarus". Sillett estimates Hyperion to be 600 years old while others