Hamilton to Evanston Road Trip: Best Stops & Guide

Beginning in Hamilton, Montana, at the edge of the Bitterroot Valley, this 520-mile drive to Evanston, Wyoming, traverses the Continental Divide twice and descends from 3,600 feet to 6,800 feet in elevation. The route follows U.S. Highway 93 south to Salmon, Idaho, then U.S. 20 through Idaho Falls and into Wyoming via U.S. 89, with a total drive time of roughly 9 hours without stops.

The route offers dramatic shifts from the lush Bitterroot Valley to high desert plains and rugged mountains. Highlights include Lost Trail Pass (elevation 7,014 feet), the sagebrush expanse of Idaho's Snake River Plain, and the gateway to the Wind River Range in Wyoming.

Local commerce is marked by small-town diners and ranch supply stores, with regional specialties like huckleberry shakes in Hamilton and lamb dishes in Evanston. The route passes near the Oregon Trail and California Trail historic corridors, with interpretive signs near Soda Springs, Idaho.

Long stretches with limited services mean you should pack water, snacks, and a spare tire. Rest areas exist at regular intervals, but many are basic; better options include small-town parks and visitors centers in Salmon and Idaho Falls.

For families, the drive includes kid-friendly stops like the Idaho Falls River Walk (fish ladder) and the Teton Flood Museum in Rexburg. Pet-friendly options include many roadside pull-offs and a few fenced dog parks in Idaho Falls and Evanston.

To combat fatigue, plan 15-minute breaks every 2 hours. Suggested intervals: Hamilton to Salmon (2.2 hrs), Salmon to Idaho Falls (2.5 hrs), Idaho Falls to Dubois (1.5 hrs), and Dubois to Evanston (2.8 hrs). Consider an overnight stay in Idaho Falls or Jackson to split the trip.

Highway conditions vary from smooth two-lane rural roads to multi-lane interstate-like stretches near Idaho Falls. The population density thins between Salmon and Dubois, so plan gas stops at least every 150 miles. A typical sedan averaging 30 mpg will consume about 17 gallons, with fuel costs ranging $55–$70 depending on current prices.

• Major fuel and rest points: Hamilton, MT; Salmon, ID; Idaho Falls, ID; Dubois, WY; Evanston, WY.
• Road closures possible in winter due to mountain passes (Lost Trail Pass, Teton Pass).
• Road quality is generally good, but watch for wildlife (deer, elk) especially at dawn and dusk.