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Graded green shading showing how slow the vegetation is.
Also known as: Vegetation density shading, Runnability shading, Fight shading
Orienteering maps shade vegetation by how hard it is to run through rather than by what species grows there. Three or four grades run from open forest to effectively impenetrable, and the shading is a statement about speed rather than about botany.
Grades vegetation by running speed rather than by species, in a scale from open forest through to impassable undergrowth.
Contexts: Maps
Differs fundamentally from topographic mapping, which classifies vegetation by what it is; the orienteering map classifies it by what it does to a runner.
Contexts: Maps
A bounded shape filled with a flat tone of graded darkness, its border following the edge of the vegetation.