A forest ride or a prominent trace (forestry extraction track, sandy track, ski track) through the terrain which does not have a distinct runnable path along it.
Runnability is shown using a slightly thicker line of yellow, green or white as background. Without outline: the same runnability as the surroundings.
Yellow 100%: easy running.
White in green: normal runnability.
Green 30%: slow running.
Green 60%: walk.
Minimum length: two dashes (3.25 mm – footprint 48 m).
Colour: black + white/green/yellow.