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An anchor mark showing where a vessel may anchor.
Also known as: Anchor berth marking, No anchoring symbol
An anchor drawn on a chart marks a recognised anchorage, and a crossed-out anchor marks where anchoring is prohibited — usually over a cable or a pipeline. The prohibition is the more consequential of the two and uses the ordinary negating stroke.
Marks a recognised anchorage where holding ground and shelter are considered adequate.
Contexts: Navigation, Maps
Appears crossed through where anchoring is prohibited, generally over a submarine cable or pipeline where an anchor would cause real damage.
Contexts: Navigation, Maps
A small anchor drawn with a curved fluked base and a straight shank with a crossbar, sometimes struck through by a diagonal line.