Isolated Danger Marks

Archived examples.

If there is a danger such as a rock or wreck that has deep water all round, it may be marked by an isolated danger marker.

An isolated Danger mark.
Isolated danger mark.

Frequently these are beacons mounted directly on to the danger.

Chart symbol

Chart symbol for an Isolated Danger buoy.

Shape

Normally a pillar buoy or, a pole beacon.

Colour

All isolated danger marks have red and black horizontal stripes with two black balls for a topmark.

Light

The light will always be white, and have a sequence with 2 flashes. An example of an Isolated danger beacon is Rod's Skerry on chart 4F at (46°13.41'N 05°352.86'W).

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