Changbai Mountain is the highest mountain system in the eastern margin of Eurasia Continent, which is located in the southeast of Jilin province and adjacent to the border between China and the DPRK. It got its name because its main peak is abundant in white pumice and snow.
In 1980, Changbai Mountain was listed in the "Man and Biosphere" Nature Reserves of the United Nations and was rated as the international class-A nature reserve. On May 8, 2007, the Changbai Mountain scenic spot was officially approved as a national 5A-level scenic spot by the National Tourism Administration.
Changbai Mountain boasts dense forest: featuring Pinus koraiensis, Picea jezoensis, Abies holophylla, Carpinus turczaninowii, and maples between 500 and 1200 meters above sea level; between 1200-1800 meters, mainly Picea asperata and fir forest; over 1,800 meters, Betula ermanii forest belt, tundra belt and ice line. Changbai Mountain constitutes an important forest area in China.
Tianchi Lake is located at the boundary between China and the DPRK, with the north part of the lake in Jilin province. The steep crater wall around Tianchi Lake forms dozens of ringed mountain peaks, each with an altitude of more than 2,500 meters. Baiyun peak, the highest peak in Northeast China, is 2,691 meters above sea level, which is on the west side of Tianchi Lake. Peaks around Tianchi Lake are given names according to their special features. Among them, Tianwen Peak (2,670m, meaning astronomical observatory), named for the weather station built on it, lies between two other peaks. Not prominent, but with a road leading directly to the top, Tianwen Peak overlooks the whole Tianchi Lake.
There is a gap on the north side of Tianchi Lake, which was called Tamen in ancient times (meaning a small gate), and the north flow of water is called Chengcha River (meaning river leading to the heaven). The river flows between two peaks, with a total length of 1,250 meters. At the end of the river, a 68-meter-long white waterfall is formed, which is the most spectacular waterfall in Changbai Mountain.