Trekkers participate in the Cheorwon Hantan River Ice Trekking Festival in Cheorwon County, Gangwon, which kicked off on Jan. 11. [YONHAP] Amid the bitter January chill, Cheorwon County in Gangwon ...

Cheorwon County, located at the tip of the country bordering North Korea, is one of the nation's coldest counties. Its Hantan River is 136 kilometers (84.5 miles) long and flows through Pyonggang, ...