Really close look at K country. Highwood pass is sick early and late season when the pass is open (it closes part of the winter) I got my first day there on Sept 21st. You can also access the Rae glacier from there.
If you can get a hold of a sled, me and my buddy just fouind some sic potential stuff on Saturday at Cateract Creek. Stuff you can sled to the bottom but would have to skin up. Tho be careful right now, it was bad wind loading and we heard a big slide go off (pretty sure it was human triggered)