Located in the northeast of China
the Changbai Mountains is named after its iconic scenery
of being perpetually white almost all year long
These mountains were formed around 2.77 million years ago
after volcano eruptions due to the movement of the earth crust
At the top of the main mountain there is a crater lake with an altitude of 2,100 meters
It is called Tian-Chi in Chinese
literally meaning heaven lake
Its latest eruption happened around 300 years ago
Tianchi is the largest crater lake in China
and it is the deepest mountain lake around the world as well
The average depth of water is 204 meters
It has stored over 2 billion tons of fresh water
which is able to supply the population in Beijing downtown for 22 months
The winter lasts for 9 months in the Changbai Mountains
Thus, the crest of the mountain is covered by snow most of the time
The depth of the snow is 50 centimeters on average
It is extremely difficult to visit the mountain during the winter
Lake Tianchi only melts in Mid-July due to the cold weather
and the water in the lake is flowing for only 30 days every year
It is always misty and cloudy
According to the locals people could only see the most imposing scenery here
if they have a special mysterious connection with this magical mountain