Hyperion is a coast redwood in Redwood National Park. Its surrounding area is closed because visitors damaged the shallow-rooted forest floor while trying to find it.
What is Hyperion?
Hyperion is an individual coast redwood, Sequoia sempervirens, discovered in Redwood National Park in 2006. Measurements place it at roughly 116 metres, although tree height changes slowly with growth and crown damage. It is the tallest known living tree, not the largest tree by trunk volume.
Why can redwoods grow so tall?
Coast redwoods live in a cool, wet coastal climate. Their leaves can collect moisture from fog, their bark resists many fires, and their vascular system moves water through a remarkable height. Growth still faces physical limits because pulling water to the highest leaves becomes increasingly difficult.
Why is the location protected?
The issue is not a movie-style secret. Visitors created informal trails, compacted soil, damaged ferns and disturbed the tree's shallow root zone. The National Park Service closed the area around Hyperion. Entering the closed area can lead to penalties, so responsible viewers should never follow online coordinates.
Tallest is not the same as biggest
Hyperion holds a height record. General Sherman, a giant sequoia, is famous for enormous trunk volume. Comparing trees requires naming the measurement: height, trunk volume, age or canopy spread.
Concept Map
Fast facts
| Species | Coast redwood, Sequoia sempervirens. |
| Location | Redwood National Park, California. |
| Record | Tallest known living tree by height. |
| Protection | The surrounding area is closed to prevent habitat damage. |
| Sources | US National Park Service closure notice and NPS coast redwood science |
Did you know?
Coast redwood roots are relatively shallow but spread widely and interweave with neighbouring roots, so trampling the soil near a giant tree can still cause serious damage.
Watch the short here: open the YouTube explanation.
Key takeaway
Hyperion's story combines plant physiology with conservation: extraordinary height attracts attention, but protecting the root zone matters more than reaching the tree.
