Major Cities along US 20 (ID/MT) 2025-12-24 Roadnow US 20 (ID/MT) Major Cities MAP West Yellowstone MAP Island Park MAP Macks Inn MAP Parker MAP Ashton MAP Chester MAP Saint Anthony MAP Rexburg MAP Sugar City MAP Idaho Falls MAP Atomic City MAP Arco MAP Moore MAP Carey MAP Bellevue MAP Picabo MAP Fairfield MAP Corral MAP Hill City MAP Mountain Home MAP Boise MAP Garden City MAP Eagle MAP Meridian MAP Star MAP Nampa MAP Caldwell MAP Middleton MAP Notus MAP Parma MAP Fruitland
