Driggs to Butte: Epic Idaho-Montana Road Trip Guide

You begin in Driggs, Idaho, at the western foot of the Teton Range, where ID-33 meets the base of Grand Targhee. The drive to Butte, Montana, covers roughly 230 miles via US-20, I-15, and I-90, taking about 4 hours without stops. But this route passes through the Continental Divide at Monida Pass (6,870 ft), a historic Oregon Trail crossing where emigrants once faced their last major obstacle before the Snake River plain. The highway here is predominantly two-lane rural road until Dillon, then interstate. Budget for at least 6-7 hours to explore the best stops Driggs, ID to Butte, MT.

Route Overview Table

This route is one of the safer mountain drives in the region, with no steep grades or hairpin turns. However, winter conditions (Nov–Mar) can bring snow and ice, especially at Monida Pass. Check weather before departure. Carry chains, blankets, and water. The road quality is good; US-20 and I-15 have wide shoulders. For fatigue management, plan stops every 2 hours or 100 miles.

• Fatigue break 1: St. Anthony (gas, food, restrooms at Maverik).
• Fatigue break 2: Dubois (rest area with picnic tables).
• Fatigue break 3: Dillon (fast food, Walmart, rest areas on I-15).
• Fatigue break 4: Butte exit (multiple gas stations and fast food).

Pet-friendly stops: Many fuel stations allow dogs on leashes, and the rest area near Monida Pass has a grassy area. For family suitability, the Dubois rest area has a small playground, and Dillon has a city park with splash pad. The best stops Driggs, ID to Butte, MT for families include the St. Anthony Sand Dunes and the Butte Silver Bow Arts Chateau. Carry snacks and water; services are sparse between towns.

Hidden Off-Route Spots

For those willing to explore, consider these detours: Warm Springs Creek (10 miles north of Dubois) offers hot springs open to the public. The ghost town of Bannack (45 miles southwest of Dillon) is a state park with well-preserved 1860s buildings. Also, the Wylie Park Campground near St. Anthony provides river access and solitude. Each adds 30-60 minutes.

Climatic Conditions and Route Aesthetics

Summer temperatures range from 75-90°F in the valleys to 60-70°F at Monida Pass. Afternoon thunderstorms common July–August. Fall offers golden aspen and fewer crowds. Winter driving is possible but slower; snow can accumulate rapidly. Spring brings mud and runoff. The aesthetic highlight is the view from Monida Pass looking north into Montana’s Big Hole, a vast open basin. The drive is best in early morning for golden light and wildlife activity.

The first leg from Driggs to St. Anthony crosses the Teton Valley floor, offering rear-view Tetons and the broad Snake River plain. After St. Anthony, US-20 follows the Henrys Fork of the Snake River, a blue-ribbon trout stream. Near Dubois, the landscape transitions to sagebrush steppe, then climbs to Monida Pass, a high-altitude grassland. The descent into Montana reveals the vast Big Hole Valley, ringed by the Pioneers and the Bitterroots.

• Mesa Falls Scenic Byway (ID-47): A 14-mile detour north of Ashton to Lower Mesa Falls, a 65-foot cascade. Worth 30 minutes.
• Clark Canyon Reservoir: 15 miles south of Dillon, a popular camping and fishing spot created by the 1964 earthquake dam.
• Butte's Berkeley Pit: A former open-pit copper mine now filling with toxic water, viewable from a platform. Admission $5.

Local commerce along the route includes St. Anthony's historic LDS temple visitors' center, Dubois's Sagebrush Cafe for huckleberry pie, and Dillon's Pat's Drive-In for classic burgers. Butte's Uptown district has antique shops and the World Museum of Mining. For family activities, the St. Anthony Sand Dunes (ATV rentals) and Butte's Our Lady of the Rockies statue are highlights. Is it worth driving Driggs, ID to Butte, MT? Yes, for the varied scenery and the chance to trace a pioneer corridor.

UNESCO and Heritage Sites

While no official UNESCO sites lie directly on the route, the entire Oregon Trail corridor has cultural significance. A detour to the Lemhi Pass (20 miles west of Dillon) is a National Historic Landmark where Lewis and Clark crossed the Continental Divide. Also, the Big Hole National Battlefield (30 miles east of Dillon) preserves the 1877 battle with the Nez Perce.

Fuel stations cluster in St. Anthony, Dubois, and Dillon, with gaps of 50+ miles in remote stretches. Always fill up when below half tank. The only major city is Butte (population 35,000), while Dubois and Dillon are small towns. Cell service is spotty between Dubois and Monida Pass; download offline maps. For those wondering how long to drive Driggs, ID to Butte, MT, plan 4 hours moving time, but add 2-3 for stops.

• Fuel cost estimate: $30-40 for a sedan at current prices.
• Best fuel stops: St. Anthony (Chevron, Sinclair), Dubois (Exxon), Dillon (Costco, Safeway).
• Road conditions: ID-33 and US-20 are well-maintained; I-15 is excellent. Watch for wildlife near Monida Pass.

For a deeper dive on optimizing stops, read how to find the best stops and hidden gems between cities. This guide uses that methodology.