On my trip out west this fall my friends and I are planning on taking two days to get from Glacier back to Salt Lake where we'll fly back east. Since we'll already have spent a few days exploring Montana, we wanted to take a route back south through Idaho. What are some good routes to take and things to see for a bunch of scenery-minded road trippers? (Also, I'm trying specifically to spend as little time as possible on I-84 and in and around Boise since both my sister and I have driven that more than once before.) Our style is to leave by 7 a.m. every morning and find a cheap or free place to camp by 5 p.m. or so, if that's any help.
And are the Shoshone Falls worth checking out?