It is reported to have formed present topography by the effect of faulting and folding about 2 hundred million years ago.
[3] Twelve kinds of natural products such as otter, eoreumchi, mandarin duck, kestrel, and brown hawk owl are living in the Donggang River area.
Also, the so-called Donggang River wind flow, which faces the sky as it grows, found in this area has not been reported in academics.
In February 2000, the white-tailed eagle, a rare bird of the world, at Hapsumeori, the lower reaches of Donggang River.
Also, in the Donggang River area, legends and folk tales of dragon (yong in Korean) About 2000 people of 600 homes are living in 10 ris (Samok-ri, Geoun-ri, Munsan-ri, Maha-ri, Gihwa-ri, Deokcheon-ri, Goseong-ri, Unchi-ri, Gasu-ri, Gyuram-ri, and Yongtan-ri).