Top 10 Oldest Trees in the World

Methuselah, a Great Basin bristlecone pine in California's White Mountains, has been alive for over 4,856 years — making it one of the oldest known individual trees on Earth. Its exact location is kept secret by the US Forest Service to protect it from vandalism. These ancient trees grow in harsh, windswept conditions at elevations above 3,000 meters.

Introduction

The oldest trees in the world have survived millennia of droughts, ice ages, fires, and human activity. They grow slowly, often in extreme environments where competition from other plants is minimal. Their wood is dense and resinous, resistant to rot and insect damage, allowing them to persist for thousands of years in a state of slow but continuous life.

1. Methuselah, USA — 4,856+ years

• Species: Great Basin Bristlecone Pine (Pinus longaeva)
• Location: White Mountains, California, USA
• Age: 4,856 years (as of 2026)

Methuselah was discovered in 1957 by dendrochronologist Edmund Schulman and was the oldest known living tree until an even older bristlecone pine was found nearby in 2012. The tree grows at approximately 3,000 meters elevation in the Ancient Bristlecone Pine Forest, where harsh conditions paradoxically promote longevity — the lack of competition and dry climate protect these trees from disease and fire.

Bristlecone pines grow extremely slowly, adding as little as 2.5 centimeters of trunk diameter per century. Much of Methuselah's trunk is dead wood; the tree survives through a thin strip of living bark and cambium. The US Forest Service does not reveal which tree is Methuselah to prevent damage from souvenir hunters.

2. Unnamed Bristlecone Pine, USA — 5,000+ years

• Species: Great Basin Bristlecone Pine
• Location: White Mountains, California, USA
• Age: Over 5,000 years (discovered 2012)

In 2012, researchers confirmed a bristlecone pine in the same grove as Methuselah that is over 5,000 years old, making it the oldest known individual non-clonal tree on Earth. Like Methuselah, its identity and exact location are closely guarded secrets. The tree was alive when the first Egyptian pyramids were being constructed.

These ancient bristlecone pines are critically important for dendrochronology — the science of tree-ring dating. Their ring patterns provide a continuous climate record stretching back over 9,000 years when living and dead specimens are cross-referenced, making them invaluable for calibrating radiocarbon dating methods.

3. Prometheus (Felled 1964), USA — 4,862 years

• Species: Great Basin Bristlecone Pine
• Location: Wheeler Peak, Nevada, USA
• Age: 4,862 years at time of felling

Prometheus was the oldest known tree when it was tragically cut down in 1964 by a geography graduate student named Donald Currey, who received permission from the US Forest Service to fell the tree for research purposes. After counting the rings — 4,862 — scientists realized what had been destroyed: the oldest known living organism at the time.

The loss of Prometheus became a catalyst for conservation. It helped establish Great Basin National Park in 1986, protecting the remaining bristlecone pine groves on Wheeler Peak. The incident remains one of the most notorious accidental destructions of a natural wonder in American scientific history.

4. Llangernyw Yew, Wales — 4,000–5,000 years

• Species: Common Yew (Taxus baccata)
• Location: Llangernyw village, Conwy, Wales
• Age: Estimated 4,000–5,000 years

The Llangernyw Yew grows in the churchyard of St. Digain's Church in the village of Llangernyw in North Wales. Dating ancient yews is notoriously difficult because their heartwood rots away over the centuries, leaving hollow trunks without countable rings. Age estimates rely on girth measurements and growth rate models.

The tree has a girth of approximately 10.75 meters and is still alive and growing. It was designated one of 50 Great British Trees by the Tree Council in 2002 to celebrate Queen Elizabeth II's Golden Jubilee. Local legend connects the tree to an ancient spirit called the Angelystor, said to predict deaths in the parish.

5. Sarv-e Abarqu, Iran — 4,000+ years

• Species: Mediterranean Cypress (Cupressus sempervirens)
• Location: Abarqu, Yazd Province, Iran
• Age: Estimated 4,000+ years

The Sarv-e Abarqu, also known as the Zoroastrian Sarv, is an ancient Mediterranean cypress tree in Yazd Province, Iran. Standing approximately 25 meters tall with a trunk circumference of 11.5 meters, it is regarded as the oldest living thing in Asia and has been designated an Iranian National Natural Monument.

The tree has witnessed the entire span of Persian civilization, from the Elamite period through the Achaemenid, Sassanid, and Islamic eras. It grows in an arid region where water is scarce, yet has survived for millennia — possibly sustained by a deep root system tapping into an underground water source. It is a popular pilgrimage site and tourist destination.

Key Facts

• The oldest known individual tree is an unnamed bristlecone pine over 5,000 years old.
• Bristlecone pines grow at elevations above 3,000 meters in extremely harsh conditions.
• The exact locations of the oldest bristlecone pines are kept secret for their protection.
• Ancient yew trees in Europe can live for thousands of years but are difficult to date precisely.
• Slow growth and harsh environments paradoxically promote extreme tree longevity.

Fun Facts

• Bristlecone pine wood is so dense and resinous that dead trees can remain standing for thousands of years after death without decaying.
• The Prometheus tree was older than any surviving bristlecone pine at the time it was cut down — its felling remains one of science's biggest accidental losses.
• Some clonal tree colonies, like Pando in Utah, have root systems estimated at 80,000 years old, but these are not individual trees.
• The Llangernyw Yew in Wales predates the Roman conquest of Britain by at least 2,000 years.

Final Thoughts

The oldest trees on Earth are living time capsules, encoding thousands of years of climate history in their rings while standing as monuments to endurance. Their protection is vital not just for their ecological and scientific value, but as symbols of the deep natural heritage our planet holds.