Isolated danger mark

	Marked, erected or moored on or above a danger of limited extent.
	Has navigable water around it.

Can be used for

Dangers of limited extend such as a wreck, rock.

Color:

Black with one or more broad horizontal red band.

Topmark:

Two black spheres, one above the other.

Shape:

	Optional.
	Not conflicting with lateral marks.
	Preferably pillar or spar.

Lights:

	White light.
	Group flashes 2.

Symbols used in admiralty charts:

Photographs:

Isolated danger mark.

Updated: July 03, 2003