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.
You may not find the Galaxy Glades on a trail map, so consider them a "hidden treat." As you are skiing / riding down the Nevada Trail, look to your right as soon as you cross Comstock and you'll find these tight glades that will dead end into the resort boundary and lead you towards the base of the Galaxy Lift.
If you decide to commit, make sure to keep an eye out for rogue stumps and tree wells! Depending on the snow depth, Ski Patrol may elect to keep these glades closed.