Approximately 250 animal species and 600 plant species are found in the Deogyusan area. An Amur Leopard was shot on Deogyusan in 1960, a few years before the species disappeared from South Korea. A total of 893 species of plants and 33 species of mammals, 122 species of wild birds, 2,206 species of insects, 9 species of amphibians, 13 species of reptiles and 23 species of freshwater fish were found. The distribution of major flora shows that broad-leaved trees and coniferous trees are distributed in the forest.