A routine day at a gold-mining site in Canada’s Yukon suddenly became a moment of extraordinary scientific discovery.
On June 21, 2022, a miner operating a front loader in the permafrost of the Klondike gold fields came across something unexpected. It was not a piece of gold or ordinary rock.
It was the preserved body of a young woolly mammoth.
The discovery happened at Eureka Creek, on the traditional territory of the Tr’ondëk Hwëch’in First Nation near Dawson City. The tiny mammoth was remarkably complete, with skin, fur, a trunk, tail, toenails, and other soft tissues still preserved after tens of thousands of years in frozen ground.
But there was another twist to the discovery.
Once the remains were exposed, the team had only a short window to recover them before a powerful storm arrived.
The timing would prove critical.
An Unexpected Discovery in the Permafrost
The discovery began when a miner noticed something unusual while moving frozen material at the mining site.
Recognizing that the object could be important, he stopped work and contacted his supervisor.
Brian McCaughan, owner of Treadstone Mining, quickly realized that they were looking at something far more significant than an ordinary fossil fragment.
The mining operation was stopped so the remains could be protected.
A photograph was then sent to Grant Zazula, the Yukon government’s paleontologist.
Zazula was in Whitehorse at the time, several hours away from the site. The discovery was particularly challenging because June 21 was National Indigenous Peoples Day, a statutory holiday, making it more difficult to immediately assemble a recovery team.
Eventually, two geologists were able to travel to the site and assist with the recovery.
What they found was extraordinary.
The animal was a nearly complete mummified baby woolly mammoth.
A Mammoth Calf Preserved for Tens of Thousands of Years
The specimen was later named Nun cho ga, a name in the Hän language meaning “big baby animal.”
Scientists estimated that the calf was only around 30 to 35 days old when she died.
Based on the geology of the area, researchers estimated that she lived somewhere between 35,000 and 40,000 years ago, during the last Ice Age.
That means Nun cho ga remained preserved underground for tens of thousands of years before suddenly being exposed by modern mining activity.
The preservation is what makes the discovery especially remarkable.
Nun cho ga retained much of her skin and fur, along with her tail and toenails. Her small tusk buds were still present, and even her trunk remained intact.
Her body was approximately 140 centimeters long, making her slightly longer than another famous baby mammoth known as Lyuba, which was discovered in Siberia in 2007.
Frozen mammoth remains have been discovered before, particularly in Siberia and other regions of the Arctic.
However, specimens containing so much preserved soft tissue are exceptionally rare.
For scientists, Nun cho ga offered a remarkable opportunity to study an Ice Age animal not simply as bones, but as a preserved body.
Clues About Her Final Hours
Even more fascinating were the clues preserved inside Nun cho ga.
During the recovery, researchers noticed a section of intestine that still contained grass.
That small detail provided information about what the young mammoth had been eating shortly before her death.
Grant Zazula proposed a possible reconstruction of what happened.
According to his interpretation, Nun cho ga may have been grazing and drinking near her mother when she wandered a short distance away and became trapped in muddy ground.
The burial may then have happened relatively quickly.
This is an interpretation based on the geological evidence rather than something that can be observed directly, so the precise circumstances remain uncertain.
Still, the rapid burial would help explain why so much of her body remained intact.
If the remains had been exposed to the elements for an extended period, the preservation would likely have been very different.
Instead, the permafrost effectively created a natural freezer.
For thousands of years, Nun cho ga remained protected beneath the frozen ground.
A Race Against the Weather
The scientific importance of the discovery became even clearer when the recovery team arrived.
They needed to remove the fragile remains from the site before changing weather conditions could damage them.
According to Zazula, the team had only about an hour after arriving to complete the recovery before the weather dramatically changed.
The sky darkened.
Lightning appeared.
Heavy rain began falling.
The timing was remarkably fortunate.
Had the team arrived later, the exposed mammoth could have been affected by the storm and runoff.
For a specimen that had remained naturally preserved for tens of thousands of years, sudden exposure to rain and changing environmental conditions represented a serious risk.
The recovery team managed to get Nun cho ga to safety before the storm could cause major problems.
It was one of those unusual moments when scientific discovery and timing came together perfectly.
A Quiet Ceremony for Nun Cho Ga
After the recovery, Nun cho ga was taken to a nearby location where members of the Tr’ondëk Hwëch’in First Nation gathered with scientists, miners, and local officials.
An important part of the process was the naming ceremony.
Tr’ondëk Hwëch’in elders gathered around the preserved mammoth, prayed, and blessed her.
She was given the name Nun cho ga, meaning “big baby animal” in the Hän language.
For those present, the moment was about more than scientific discovery.
The mammoth had been found on Tr’ondëk Hwëch’in traditional territory, making the cultural significance of the discovery an important part of how the remains would be treated.
Debbie Nagano, heritage director for the Tr’ondëk Hwëch’in Government, described the reaction when the covering was removed.
Those gathered reportedly stood in silence for several minutes as they looked at the remarkably preserved animal.
The response reflected the unusual nature of the moment: a creature that had lived during the Ice Age was suddenly present before them again.
More Than a Scientific Specimen
The discovery of Nun cho ga immediately attracted attention from scientists and the public.
For paleontologists, she represented an exceptionally valuable source of information about Ice Age ecosystems.
Her preserved body could potentially reveal details about mammoth biology, diet, growth, environmental conditions, and the world in which she lived.
But the discovery also raised important questions about cultural responsibility.
Tr’ondëk Hwëch’in Chief Roberta Joseph emphasized that the remains should be handled in a way that respects the First Nation’s traditions, culture, and laws.
That approach recognizes that an archaeological or paleontological discovery can have significance beyond scientific research.
Nun cho ga is both an Ice Age animal and a discovery made on Indigenous traditional territory.
The partnership between the Tr’ondëk Hwëch’in First Nation and the Yukon government therefore became an important part of determining what would happen next.
What Makes Nun Cho Ga So Special?
One of the most common questions about Nun cho ga is why scientists consider her so important.
The answer lies largely in preservation.
Most ancient animals are discovered primarily through bones or teeth. Soft tissues generally disappear over time because they are much more vulnerable to environmental processes.
Permafrost can change that.
When an animal is rapidly buried and remains frozen for thousands of years, certain tissues can survive under the right conditions.
Nun cho ga’s skin, fur, trunk, tail, and other preserved features therefore provide scientists with information that a skeleton alone could never provide.
Her intestine and the grass preserved inside it are another example.
Instead of simply knowing that mammoths lived in the Yukon, researchers can examine physical evidence connected to the animal’s diet and environment.
Every preserved detail potentially adds another piece to the picture of Ice Age life.
A Window Into the Ice Age
Woolly mammoths once lived across large parts of the northern hemisphere.
They adapted to cold environments and were an important