I'm headed to Lake Tahoe this weekend and we're planning on hitting Alpine Meadows on Sat. and Squaw on Sun. Any tips on either of those two areas? Secret stashes, untracked powder? Is it wise to wear a pack if you want to move around the mountain a bit? I've ridden at large areas before (Sugarloaf, Sunday River) but only out east, this will be my first left coast trip.