Seamarks/Rocks

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Seamark tagging
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Inland (CEVNI)

Rocks

The tags defined on this page will render in various nautical charts.

Type S100 code seamark:type Definition
Underwater/awash rock UWTROC rock A concreted mass of stony material or coral which dries, is awash or is below the water surface.

The rendering depends on the value of the water level attribute:

Water level (WATLEV) seamark:rock:water_level Definition Rendering
Covers and uncovers covers Periodically extends above and is submerged below the surface. RockC.png
Awash awash Flush with, or washed by the waves at low water under average meteorological conditions. RockA.png
Other values submerged, etc. Any rock that presents a danger to navigation. RockX.png

References

OSM seamark resources

External sources