Yongsogol Valley is a Simsanyu Valley that flows around the bend of Seorincheon Stream, and is a mysterious landscape with dense pine forests, clear water, and white gravel and sand fields. If you leave the pine forest, there is a waterfall and Yongso where there is a legend that a dragon ascended to heaven. There is also a Tangso that says that the sound of water falling underneath it sounds like the sound of boiling water. This place is also called Gongsujeon Valley because during the Joseon Dynasty, there was an institution called 'Gongsujeon' where officials going on business trips received travel expenses. In the valley, there is Yongsogol Rest Area built of logs, adding to the charm.