Mulyeongari-oreum is located on the Mt. Suryeong (sea level attitude : 508m) on the Halla mountain in Jeju island. It is a typical parasitic cone and the mouth of a volcano has a girth of 300m, 40m in depth and 1,000m circumference around the crater. Viewed from the summit of the mountain north of crater, its external shape has a concentric circle and hollowed surface in the middle of crater respectively.
