Danyang Ondaldonggul Cave (단양 온달동굴)
| Item List | Contents |
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| Image |
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| registration date | 20121204223224 |
| Modified date | 20200102231816 |
| address | 23, Ondal-ro, Yeongchun-myeon, Danyang-gun, Chungcheongbuk-do |
| type | Nature |
| area code | Chungcheongbuk-do |
| tel | +82-43-423-8820 |