Mt Kumgang, one of the celebrated mountains in the Democratic People’s Republic of Korea, and its vicinity boast many natural monuments that are of great academic significance and add beauty to the landscape. One of them is the fir forest in Inner Kumgang, which covers an area of 128 hectares. A 300-odd-year-old tree is 23 metres high, and its crown is about 13 metres wide. The luxuriant forest, a rare natural one, is an important natural monument that adds scenic beauty to Mt Kumgang.