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Mountain Passes—Statewide
Map of Statewide Between Thompson Creek Road (3 miles south of the Clayton area) and US 93 (20 miles north of the Clayton area). Look out for large animals on the roadway. Prepare to stop. Between Old Highway 91 and 2000 South Road; Menan Butte Road (13 to 15 miles west of the Rexburg area). Be aware of the animal crossing area. Drive with extreme caution. Between Exit 98: Lambert Road and Exit 108: River Road (2 to 8 miles north of the Blackfoot area). Look out for mobile maintenance operations. People are working in the median. There is a width limit in effect because the roadway is reduced to one lane. Speed restrictions are in force. Speed limit 70 MPH. Width limit 14'0". Until Friday, at about 5:00PM MST. Between US 20 and Little Lost River Highway (28 to 34 miles west of the Mud Lake area). Look out for drifting snow on the roadway. Look out for ice on the roadway. Drive with extreme caution. Between US 20 and The Butte - Jefferson County Line (10 to 43 miles west of the Mud Lake area). Look out for large animals on the roadway. Between Salmon Avenue (Arco) and Brunt Road (24 miles west of the Idaho Falls area). Look out for large animals on the roadway. Between Lava Lake Road (16 miles north of the Carey area) and US 20 (Arco). Look out for large animals on the roadway. Between Melba Road and Lewis Lane (8 miles south of the Nampa area). Look out for potholes. Drive with extreme caution. Between McGowan Creek Road (13 miles south of the Challis area) and McKim Creek Road (20 miles north of the Challis area). Look out for large animals on the roadway. Between US 20 (Arco) and Hammond Lane (near Challis). Look out for large animals on the roadway.
I-90: Lookout Pass
ID 33: Teton Pass
ID 71: Brownlee
I-90: Fourth of July Pass
US 93: Willow Creek
ID 36: Emigration Pass
I-15: Monida Pass
US 30: Border
US 30: Fish Creek
US 30: Georgetown
US 93: Lost Trail Pass
ID 87: Reynolds Pass
ID 21: Banner Creek
US 95: Lewiston Hill
I-15: Malad
US 89: Geneva
US 95: Midvale Hill
ID 75: Galena
US 20: Targee Pass
ID 21: Highland Valley
ID 21: Beaver Creek
US 12: Lolo Pass
ID 55: Horseshoe Bend Hill
ID 29: Bannock Pass
US 95: White Bird Hill
ID 38: Holbrook
ID 28: Gilmore
US 20: Cat Creek
ID 31: Pine Creek Pass
US 93: Nevada Line Pass
ID 21: Mores Creek
I-84: Sweetzer
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Mountain Pass Mountain Pass