Snowbell and I skied that several years ago in late spring conditions. Looks like we stopped in the upper basin after 1100' or so; we did not go all the way down to Lake Ellinor (visible). There are several entries at the top. A lot of that valley is a bit of a terrain trap in unstable conditions. It is a great feeling to drop off the developed Lake Cushman side and into that very isolated part of the mountain!
There is no cure for birth and death save to enjoy the interval. George Santayana