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A cross-shaped mark for rock at chart datum.
Also known as: Awash rock symbol, Rock at datum symbol
On a nautical chart a rock awash is drawn as a distinctive cross-shaped mark, denoting rock that lies at about the level of chart datum and is covered and uncovered by the tide.
Marks rock lying at approximately the level of chart datum, alternately covered and exposed by the tide.
Contexts: Navigation
Belongs to a graded set with the drying rock and the underwater rock, the three distinguished by height relative to chart datum.
Contexts: Navigation
A small cross with short strokes, drawn at the rock's charted position.