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| Series | Geological Map of Japan 1:200,000 |
| Map sheet number | NI-53-21 |
| Map titl | TOKUSHIMA |
| Authors | TSUSHIMA Konroku, KATADA Masato |
| Publication year | 1961 |
| Publisher | Geological Survey of Japan |
| Price | ----- |
| Prefectures covered | TOKUSHIMA, KAGAWA, HYOGO, OKAYAMA |