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* 17975 |
Chart: 536 |
Sweden. Sea of Åland and Archipelago Sea. Gräsö. Notfjärden. NV om Hällgrund. Shoal. |
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| Insert | underwater rock | a) | 60-18,488N | 018-35,143E | and amend depth contours as shown |
| Insert | underwater rock | b) | 60-18,452N | 018-35,287E | |
| Insert | underwater rock | c) | 60-18,400N | 018-35,304E | |
| Insert | underwater rock | d) | 60-18,361N | 018-35,411E | |
| Insert | underwater rock | e) | 60-18,324N | 018-35,435E |
Idön - Hällgrund. Shoals. |