FATMAP difficulty grade
Z Fan is the wide open powder field at the bottom of most runs in D Route.
It is usually nice pow until later in the year when the sun can affect it a little bit.
It often has sluff piles that run out into it from early morning control work.
There are some heat vents in the rocks on the North side, so beware of these.
Also, the South Bowl Traverse runs across the bottom, keep that in mind when you're skiing.