Discovering the Pando Tree: The World's Largest Living Organism

The Pando tree is a collection of quaking aspen trees that are all connected to one single root system

Fishlake National Forest of Sevier County, Utah, is home to a very unique tree known as Pando. It's actually known as the world’s largest living organism, which is a big accomplishment for a tree!

But what exactly makes Pando so unique? And how can a tree be considered the world’s largest living organism? Let's dig a little deeper into the story of this fascinating tree.

What Is Pando?

In Latin, the word Pando means "I spread," and this sprawling tree system definitely fits that definition. Pando isn’t just a tree--it’s an entire collection of quaking aspen trees estimated to have nearly 50,000 stems. They appear to be individual trees, but are actually all connected by a single root system and are technically only one single tree. A single tree … that spans approximately 108 acres? That’s one big organism! This extensive root system allows Pando to coordinate energy production, defense, and regeneration, making it a true marvel of nature.

An image depicting how large the Pando tree spans, approximately 108 acres

Pando is believed to weigh over 13 million pounds, making it the heaviest known organism on Earth. Each stem of Pando is genetically identical, a characteristic that confirms it is one single entity rather than a collection of separate trees.

Pando: A Tree with a Long History

Pando's longevity and resilience has captivated researchers. Its root system suggests it has existed for thousands of years. Today, researchers are studying Pando and trying to understand how it has thrived in an environment that presents difficult challenges such as drought, grazing wildlife, and wildfires.

A photo showing the many branches of the Pando tree, all of which are connected by a single root system

Where Is Pando Located?

Pando is part of the Fishlake National Forest of Sevier County, Utah, which is located about halfway between Zion National Park and Salt Lake City. It's described as a "family-friendly forest" and boasts over 600 miles of motorized trails with plenty for families to explore after viewing Pando!

Want to Learn More Amazing Facts about Utah?

In our Hello, Utah! unit, part of our Hit the Road Geography curriculum, you'll explore fascinating topics that highlight the unique characteristics of this beautiful state. Here are some of the topics you'll explore inside the pages of Hello, Utah!:

  • The Salinity of the Great Salt Lake: Learn how the salinity affects buoyancy and the unique ecosystem surrounding this iconic body of water.
  • The Incredible Pando: Dive deeper into how this single tree with a shared root system is a testament to nature's wonders.
  • Utah's Geographic Features: Explore the differences between geological formations like buttes, mesas, and plateaus, and enrich your child's knowledge of Utah’s diverse landscapes.


Hello, Utah! US geography curriculum state study download image


Join us for an adventure through the wonders of Utah! Our Hello, Utah! unit offers hands-on activities, engaging facts, and memorable lessons that make learning about geography fun and exciting.

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5 comments

Wow 😳🤯 How awesome is this? VERY! I never knew about it before thank you for sharing.

Linda Moffitt

That is really awesome! Today I learned something 😌 new thanks to you folk. Merry Christmas 2024!

Joshua C.W.

I had a vague recollection of a single tree that stretched across a large area but I had no idea it was in Utah. How cool!

Judith Martinez

So fascinating and interesting.

Karen Origer-Greco

Such beautiful trees!! I never knew they existed..

Mya Goss

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