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Water and marsh

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This page contains content from ISOM2000   This page contains content from Ashby Mapping    revision 01/00

This group includes both open water and special types of vegetation caused by the presence of water (marsh).

The classification is important because it indicates the degree of hindrance to the runner and provide features for map reading and control points.

A black line round a water feature indicates that the feature cannot be crossed under normal weather conditions.

In dry areas the features listed in this section may only contain water in some seasons.

Uncrossable river
Crossable watercourse
Crossable small watercourse
Minor water channel
Narrow marsh
Uncrossable marsh
Indistinct marsh
Special water feature

Crossing point with a bridge
Crossing point without a bridge

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International Specification for Orienteering Maps produced by the International Orienteering Federation
OCAD produced by Hans Steinegger Software. 1988-1999 Hans Steinegger. OCAD is a registered trademark of Hans Steinegger
This document has been written and coded by Peter Hornsby of Ashby Mapping
Apologies for any mistakes and errors; please inform details of any problems, thanks.
Produced for the Ashby Mapping internet site on 20 November 1997 and 1 December 1999  1997-2000 Ashby Mapping
Revised 28 December 1999, 23 March 2000