Seoraksan Mountain In Korea South is the important mountain. Seoraksan is the highest mountain in the Taebaek mountain range in the Gangwon province in eastern South Korea. It is located in a national park near the city of Sokcho. 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. The main season for Seoraksan national park is autumn. The autumn colours in the area are considered amongst the most beautiful in Korea. The red and yellow forest is interrupted by rocks and small mountain streams flow amidst this.