Double Top glades is a great place to get used to ungroomed terrain through the nicely gladed woods.
From the top of East River you'll take the immediate left, following the sign for Double Top Glade to the left of the Ski Patrol Shack, taking a right into the trees.
The trail drops into a little gully and you can bear right into the thicker trees to go into Gully Glades.
To stay on Double Top continue through the gladed terrain and moguls and the trail will open up to some great bump skiing as the pines shift to aspen trees.
At the bottom of the bumps you can continue on to groomed terrain on Black Eagle to Resurrection or stay left in the trees to get some more tree skiing and probably more powder and join Black Eagle a little further down.