[1] The plain was a fierce battleground in the Korean War, and with the ceasefire in 1953, it was designated as a civilian control area.

It is also a battleground in the Korean War, but the riverside is beautiful, so the Hantang River National Tourist Resort was established.

[5] The Hantan River passes through a mountainous area where there was volcanic activity in the Cenozoic Era and Quaternary, and Canyons and Cliffs are developed.

The minerals that form the ground in the canyon caused by volcanic activity in the Chugaryeong Rift Zone [ko][6] include porphyritic metamorphic gneiss, Proterozoic Yeoncheon metamorphic sedimentary rock, Mesozoic Era Jurassic granite flow and porphyritic granite, Cretaceous sedimentary rocks of the Shindong Formation Group, etc.

[7][8] An old scenic spot on the Hantangang River is Goseokjeong [ko], where Jinpyeong of Silla built a pavilion.