Jeolgolgyegok Valley is located along the mountain ridgeline connecting Gamebong Peak and Wanggeoam Rock in Juwangsan Mountain. It stretches for 5 kilometers from Jeolgol Valley Visitor's Center to Daemun Bridge. The valley is formed of vocanic tuffs that were welded and compacted after cooling down, which resulted in forming vertical cracks, leaving rocks to fall out and create a steep valley cliff.