Fig. 2From: Genesis of the columnar joints from welded tuff in Mount Mudeung National Geopark, Republic of KoreaGeological map of Mount Mudeung National Geopark (MMNG), modified from the geological map of the Korean Institute of Geosciences and Mineral Resources (KIGAM) and the 1:50,000 topographic map of the National Geographic Information Institute of KoreaBack to article page