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| Series | Geological Sheet Map 1:75,000 |
| No. | 230 |
| Map Name | TOKUSHIMA |
| Explanatory | Explanatory Text of the Geological Map of Japan, Tokushima |
| Author | Ken HIRAYAMA, Keisaku TANAKA |
| Publish Year | 1952 / 1955（Explanatory） |
| Publisher | Geological Survey of Japan |
| Price | out of stock |
| Prefecture | TOKUSHIMA, HYOGO |
| Size | @750mm×@520mm |
| Remarks | |