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307 Uncrossable marsh

from
ISOM 2017-2
307 Uncrossable marsh (ISOM 2017-2)

Geometry: area.

Definition

A marsh which is uncrossable or dangerous for the competitor. The black outline emphasises that the feature is uncrossable. The black outline is omitted for boundaries between uncrossable marsh and symbol Uncrossable body of water (301). The symbol may be combined with a rough open land symbol (403, 404) to show openness.
The symbol is orientated to north.

Parameters

Minimum width: 2 lines or 0.8 mm (inside).

Smaller areas must either be left out, exaggerated or shown using symbol
Uncrossable body of water (301).

Colour: black (outline), blue.

Comments

The definition of this map symbol was updated on 15.02.2022: Change of minimum size.

Correct examples