What do you mean when you say northern idaho, what towns etc?
Not too much that I know of to successfully shoot in N.Idaho. Montana (3-4 hours has more, and you could even hit wildeyes if you shoot captives - I dont, but many many people go there from all across the nation). There are some areas that have some great whitetails, but I dont know of them anymore, they change over time and I've not shot there in years.
If I were going to be in NIdaho, I'd check out the
Kootenai National Wildlife Refuge near Bonner. . .