Seoraksan (설악산) is the highest mountain in the Taebaek mountain range in Gangwon-do. It is located in a national park near the city of Sokcho . After the Hallasan volcano on Jeju-do and Jirisan in the south, Seoraksan is the third highest mountain in South Korea. The Daechongbong Peak of Seoraksan reaches 1,708 metres (5,603 feet). The Taebaek mountain chain is often considered the backbone of the Korean peninsula. UNESCO designated the region in 1992 as a Biosphere Reserve.
In the end of 2006 with the construction of a new highway from Inje to Hongcheon, the distance to the mountain through this route shrunk by 6 kilometres, from 40 km to 34 km.