Gubyeongsan Mountain is an 876 m-high mountain located on the southern side of Songnisan National Park. It is also known as "Gubongsan Mountain" because it is said to have nine (gu) peaks (bong). There is a lush forest with plenty of beautiful rocky cliffs. Visit in the fall to enjoy the true beauty of the place. Boeun’s basin geographical feature can be seen from the summit.