The young miner sounded the alarm when his front-end loader struck something unexpected in the gold fields.
His discovery was described by the territory's palaeontologist as one of the most incredible mummified ice age animals ever found.
Grant Zazula, the paleontologist for the Canadian territory of the Whitehorse, told the Canadian Broadcasting Corporation that she was beautiful.
There is a trunk. She has a body part. She has small ears She could use the small prehensile end of the trunk to grab grass.
The find was described as the most important discovery in the area. The find is considered to be the most complete mummified mammal found on the planet.
The woolly mammoth is thought to have been less than a month old when she died. She is 140 cm longer than the other baby woolly mammoth discovered in Siberia.
It was found on the traditional territory of the First Nation. The elders named the baby animal Nun cho ga, meaning "big baby animal" in the Hn language.
The elder of the Tr'ondk Hwch'in stated that it was amazing. When the tarp was removed, it took me away.
Chief Roberta Joseph said they would seek to move forward with the remains in a way that honors their traditions, culture and laws.
It is possible that the words were a nod to the luck that led to the find. Zazula was left scrambling to find someone in the area who could go to the site to recover the find after the mining company called on a statutory holiday.
Two geologists were tracked down by him. Zazula said that within an hour of them being there to do the work, the sky opened up and it turned black. She would have been lost in the storm if she hadn't been recovered.
The geologists who recovered her found a piece of grass in her stomach, which they believe was from when she was a baby.
She may have been trapped in mud and frozen during the ice age. He said that the event from being trapped in the mud to burial was very fast.
The excitement was still there days after the find. It will take a long time for it to sink in, said Zazula. It will take a long time to decide what to do and learn from this.