Border control officers encountered a white fox at the bank of Heaven Lake atop the snow-covered Changbai Mountain in northwest China's Jilin Province, on November 8, 2019. /VCG Photo

As the reserve gains improved ecological protection by local authorities, wild animals have been returning to the area in recent years. /VCG Photo

The Changbai Mountain got its name due to its perpetually white scenery. At the top is the Tianchi Lake, which is the world's deepest mountain lake, as well as China's largest crater lake. /VCG Photo