Like the first poster said Idaho has been slammed with early mountain snowfalls. I don't know the exact depths but over 8,000 my guess is 20" plus. When I was up there 8 days ago I was hiking in 15" and it has snowed quite a bit since then.
I would suggest you call the Forest Service in your area and ask them about access into where you want to go.
If you can get in there the hunting should be incredible as the animals should all be down along the river.
Good luck!