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Small depression 115

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

Specifications

115 Small depression

Small shallow natural depressions and hollows (minimum diameter 2m) which cannot be shown to scale by contours are represented by a semicircle. Minimum depth from the surrounding ground should be 1 m. Location is the centre of gravity of the symbol, which is orientated to north. Symbol 116 is used for man-made pits.

Colour: brown.

Line width 0.18mm

This symbol is oriented to north.

ISOM 1990 Definition

As ISOM 2000 but line width was 0.175mm and the number has changed.

OCAD Methods

Defined as point symbol 115.0, can be drawn with any drawing tool.

This is a rotatable symbol, it can be rotated with the direction tool and will rotate with the map if the “include symbols” box is checked when the map is turned.

Care when drawing is needed, a click will place the symbol; a click with drag will rotate the symbol in the direction of the drag. To correct this, redraw carefully. Don Scarrott has written a utility that straightens all rotated symbols.

Drawing Considerations

Beware of using too many small depressions which draw the eye from the shape of the land; can contours better represent the feature?

Pictorial Descriptions

- BOF Rules, Appendix One

A small, shallow sided hollow from which the ground rises on all sides.

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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