Navigation General · IALA Marks
An isolated danger mark is recognized by its:
- AAll-yellow color
- BRed and white vertical stripes
- CBlack body with red horizontal band(s) and a topmark of two black balls, one above the other✓ Correct
- DSingle green cone
Explanation
An isolated danger mark is black with one or more broad red horizontal bands and carries a topmark of two black spheres vertically. It is placed on or near a danger with navigable water all around it.
Authority: IALA Maritime Buoyage System
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