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Hyperion (tree)

Hyperion is a coast redwood (*Sequoia sempervirens*) in California that is widely regarded as the world’s tallest known living tree.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Hyperion is a coast redwood (*Sequoia sempervirens*) in California that is widely regarded as the world’s tallest known living tree. It was discovered in 2006 in Redwood National Park and its exact location is kept secret to protect the tree and its habitat.

Discovery and naming

Hyperion was discovered on 25 August 2006 by naturalists Chris Atkins and Michael Taylor. It was named after Hyperion, a Titan in Greek mythology.

Height and records

The tree has been measured multiple times. Guinness World Records reported its height as 116.07 m in 2019, while later reporting in 2026 gave its height as 116.22 m. Hyperion is also noted for an exceptionally deep crown.

Location and protection

Hyperion grows in Redwood National Park in California, but its exact location is intentionally undisclosed. Access restrictions were introduced to protect the tree, its roots, and the surrounding slope from damage.

Species and age

Hyperion is a coast redwood, a species known for exceptional height and longevity. It is commonly estimated to be 600 to 800 years old.

Key facts

  • Hyperion is a coast redwood and the tallest known living tree.
  • It was discovered on 25 August 2006 by Chris Atkins and Michael Taylor.
  • Guinness World Records listed its height as 116.07 m in 2019; a 2026 report gave 116.22 m.
  • Its exact location in Redwood National Park is kept secret to protect it.
  • The tree is estimated to be between 600 and 800 years old.

Frequently asked questions

What is Hyperion?
Hyperion is a coast redwood in California and the tallest known living tree.
Where is Hyperion located?
It is in Redwood National Park, California, but its exact location is not publicly disclosed.
How tall is Hyperion?
A 2026 report gives its height as 116.22 m; Guinness listed 116.07 m in 2019.
Who discovered Hyperion?
It was discovered on 25 August 2006 by Chris Atkins and Michael Taylor.
Why is the location secret?
The location is kept secret to help protect the tree and its fragile surroundings from damage.
How old is Hyperion?
It is estimated to be between 600 and 800 years old.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Hyperion_(tree)
    Supports: Species, height reported in 2026, and general identification as the tallest known living tree.
  2. Guinness World Records — https://www.guinnessworldrecords.com/world-records/tallest-tree-living
    Supports: Discovered date, location, height in 2019, estimated age, and record status.
  3. The New York Times — https://www.nytimes.com/2022/08/02/us/hyperion-tree-redwood-california.html
    Supports: Access restrictions and protection measures around the tree.