The Chinese juniper ranges from the south of the middle Korea to Ulleungdo Island and Japan.
This tree is also called "Sangnamu" and "a Japanese cypress".
This tree is used for burning incense because it has a strong fragrance, and is planted of a garden tree and a park tree.The Chinese juniper in Tonggumi is growing on the crack of the steep rockwall behind the villege in Namyang-ri, Ulleungdo Island.
The Chinese juniper is the represetative tree of Ulleungdo Island and there were formerly a number of old big trees.
But, now it is difficult of looking for the Chinese juniper in the whole island because people cut it at random.The natural growing site of the Chinese juniper in Tonggumi is a place that pure breeds of the Chinese juniper grow and is of importance scientifically.
Therefore, to prevent thoughtless damages by people, the natural growing site of the Chinese juniper in Tonggumi is designated and is conserved as Natural Monument.