Songnisan has natural treasures such as the Jeongipumsong (a pine tree that, in Korean legend, was awarded the rank of minister by King Sejo), otter, flying squirrel, and mandarin duck. In addition, there are many bird species that are designated for the purpose of protection by the Ministry of Environment as well as endangered animals such as the small-eared cat and marten. Moreover, a variety of native fish species live in the streams flowing into Geumgang, Nakdonggang, and Hangang.