Piagol Valley is located between Nogodan and Banya peak on Jirisan Mountain. It is named so because in the fall the leaves in the valley turn crimson red. It is also one of the ten most beautiful highlights of Jirisan Mountain. It is famous for its fall colors, but it is also a beautiful place to visit all year around. During the spring time, the royal azaleas cover the entire area, and in the summer the lush forest fills the valley.