Hyperion was discovered August 25, 2006, by naturalists Chris Atkins and Michael Taylor. The tree was verified as standing 115.55 m (379.1 ft) 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 530 m3 (18,600 cu ft) 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 report it to be roughly 700–800 years old.
The exact location of Hyperion is kept in secret to prevent visitors and protect the tree from damage.
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