Analysing terrain data
The exposure grade does not take into account objective hazards (stone fall, seracs, etc) but only the consequences of the skier falling.
Low Exposure (E1): Exposure is limited to that of the slope itself. Getting hurt is still likely if the slope is steep and/or the snow is hard.
Medium Exposure (E2): As well as the slope itself, there are some obstacles (such as rock outcrops) which could aggravate injury.
High Exposure (E3): In case of a fall, death is highly likely.
Extreme Exposure (E4): In case of a fall, the skier faces certain death.
Dirt bike grade: Green.
The second half is the toughest and overgrown with a couple of short blue sections - getting over some boulders and deep ruts in tree roots.
If you're strictly a green rider then these will likely turn you back if you're riding on your own.
Steep drop off the side on narrow single track in some sections.