You'll have a dandy pass to go over on the MT-ID line heading south toward Salmon & Challis. Take it easy. there's a nice rest area at the top (7000+ feet), lots of switchbacks southbound on the Idaho side. Pretty scenery! We weren't too impressed with campgrounds in/around Salmon. Haven't camped in Challis yet, though the golf course gets good reviews. Depending on which way you go to Sun Valley, there's a nice, small one between Challis & Salmon, Torrey's Resort. Beautiful spot - we loved it. Or Arco has a nice KOA, well off the road so pretty quiet.