An area of good visibility that is difficult to run through, due to, for instance, undergrowth (brambles, heather, low bushes, cut branches). Running speed is reduced to about 20-60% of normal speed.
Areas of good visibility that are very difficult to run or impassable are represented using symbol Vegetation: fight (410).
The symbol is orientated to north.
Minimum area: 1 mm x 1 mm (footprint 15 m x 15 m).