Special vegetation feature - dot 420
See Also...418 419
ISOM Index Vegetation index
420 Special vegetation feature
Symbol 420 can be used for special small vegetation features.
The definition of the symbol must be given in the map legend.
Dot diameter 0.5mm.
ISOM 1990 Definition
This symbol is new to the ISOM2000
Defined as point symbol 420.0, can be drawn with any drawing tool.
Pictorial Descriptions- BOF Rules, Appendix One
Single tree: an unusual or distinctive tree in either open land or forest; frequently
information is given as to its type, eg coniferous/deciduous.
Root stock: the upturned root of a fallen tree, with or without the trunk.
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Produced for the Ashby Mapping internet site on 20 November 1997 and 1 December
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Revised 28 December 1999, 23 March 2000