When climbers reached the top of Europe's highest mountain, Mount Elbrus 18,510 feet up, the last thing they expected to find was a dog.
It is believed the dog had been at the top of the mountain for two weeks, and was shivering in the cold when she was found.
It's still unclear how the dog, which has now been named Bonnie, ended up at the top of the mountain.
She was very thin and frightened, so the climbers attached a rope to her collar and used it as a lead, to bring her back down from the mountain.
One of the climbers, Andrey Orlovskiy took Bonnie home to the city of Kislovodsk, Russia, and got a vet to look over the dog.
Amazingly she did not have any health problems, despite her long turmoil in the cold. The vet believes she is just two years-old.
As Bonnie was not vaccinated, she could not fly to Moscow with Orlovskiy, as that was where he was headed next, so he advertised Bonnie on social media.
Within a couple of hours a woman named Margarita Shovaeva responded saying she could take the dog in, taking her home to the south-western town of Nalchik and giving her her name.