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.
The Nasties are just as the name suggests, nasty.
They are a fluty, steep tree spine area with a couple steep rollovers.
It is North facing, and holds powder many days after a storm.
The skier's right side is a little more mellow, but there are still technical turns through the trees, and this side gets skied a lot, so there will be less soft snow.
At the top of the Nasties, there is a nice gentle pow field, this rolls over to a shelf above a tight crux where most people will head to the right back into the trees.
If one goes for the gnarlier option, you must point it through a steep section for about 20ft directly towards trees- hopefully you'll be able to turn left, avoiding these trees, and finding the alley through.
This last section is a 10-20 footer with a nasty take off that you will have to pre jump.
The Nasties is a great run, but the consequences are high if you are choose the direct line and are not totally on your game.