If you are going to the West side of Boise I would recomend when you get to Lowman on #21 I would turn right to Garden Valley to Banks then take #55 into Eagle/Meridian etc. Even if it was ME and I would be going to the downtown/east side of Boise I would go thru Banks (better road/lessmountain driving/less slow curves.
2005 Dodge, 2500, auto, 2wd. Pac brake PRXB. CB, Max Brake Brake Controller, Rhino Lining, Aero 60 gal. replacement tank.
1998 Hitchhiker ll, mod#31RLBGBW, RBW L'tl Rocker Hitch, Generac NP50 G generator