Boise to Red Lodge: Epic Idaho-Montana Road Trip Guide

The 560-mile drive from Boise, Idaho to Red Lodge, Montana traces the Snake River Plain, crosses the Continental Divide at 8,430-foot Teton Pass, and enters the Beartooth Front. This route, primarily on I-84, US-26, and US-20, offers a cross-section of Rocky Mountain geography. A local quirk: near Dubois, Idaho, you'll encounter the "Earthquake Lake" area, formed by the 1959 Hebgen Lake quake—a sobering geologic marker.

The drive typically takes 9-10 hours without stops, but most travelers allocate two to three days to absorb the scenery. Below is a table of key segments.

The route passes through two UNESCO World Heritage Sites: Yellowstone National Park (geothermal wonders, bison herds) and the nearby Waterton-Glacier International Peace Park (accessed via Red Lodge's Beartooth Highway). The Beartooth Highway (US-212) is a National Scenic Byway with alpine tundra and 20 peaks over 12,000 feet.

Local commerce includes Idaho's potato farms, Wyoming's Jackson Hole art galleries, and Montana's mining history in Red Lodge. Side economies: fly-fishing shops along the Madison River, and rustic lodges offering horseback rides.

• Idaho Falls: Potato museum and river walk.
• West Yellowstone: Fly fishing and snowmobile rentals.
• Red Lodge: Historic downtown with saloons and boutiques.

Road quality: I-84 is excellent; US-20 is two-lane but well-maintained; the Beartooth Highway (US-212) has steep grades and no guardrails. Speed limits drop from 75 mph to 45 mph. Wildlife (elk, deer, bison) frequently cross—especially at dawn/dusk.

Fatigue management: Planned rest zones include Craters of the Moon National Monument (mile 240) and Earthquake Lake overlook (mile 430). These offer short walks and interpretive signs. Best stops Boise, ID to Red Lodge, MT for families: the Tautphaus Park Zoo in Idaho Falls and the Yellowstone Historic Center in West Yellowstone. Pet-friendly stops: Snake River Greenbelt (Boise) and Gallatin National Forest trailheads.

Things to do between Boise, ID and Red Lodge, MT: soak in Kirkham Hot Springs (mile 70), hike Table Rock (mountain bike trails near Idaho Falls), and visit the Beartooth Basin summer ski area. For hidden off-route spots: take a detour to the ghost town of Bannack (Montana) or the Mesa Falls scenic drive.

Family and child suitability: 5/5 for ages 8+; younger kids may find driving long stretches challenging. Pet-friendly framework: 4/5—most national forests allow leashed pets, but Yellowstone's boardwalks are restricted.

Fuel stations are plentiful along I-84 but become sparse between Idaho Falls and West Yellowstone—plan to fill up in Idaho Falls or St. Anthony. Gas prices average $0.10-0.20 higher near national park entrances. For detailed stop planning, see how to find the best stops and hidden gems between cities.

Cell coverage is reliable in towns but drops in mountain corridors. Download offline maps for the stretch from West Yellowstone to Cooke City. Winter travel (Nov-Apr) may require chains or 4WD. The road is best visited June-September.