Dihedral Face is a double black diamond extreme run in Black Iron Bowl that can be accessed by hiking from the Prospect Express (lift 12), the hike should take around 20-25 minutes.
Dihedral Face is a steep run that is truly for extreme skiers only.
This run needs a lot of snow to ski well, as there are a lot of exposed rocks and cliffs otherwise.
When Dihedral Face has a lot of snow, the skiing is awesome, otherwise it is just okay, and is definitely more challenging.
This run is more narrow at the top, and widens up as you ski down.