Spokane to Dubois Road Trip Guide: Scenic WY Drive

This route from Spokane, WA to Dubois, WY covers roughly 600 miles via I-90 E and US-287 S, with a driving time of about 9.5 hours without stops. It traverses the Columbia Plateau, the Bitterroot Range, and the Wind River Basin, offering dramatic shifts from arid basalt plains to alpine forests. One quirky detail: near Butte, MT, you cross the Continental Divide at Homestake Pass (elevation 6,329 ft), where the weather can change drastically in minutes. For tips on how to find the best stops and hidden gems between cities, check out this guide.

Road quality on I-90 is high, but watch for wildlife especially at dawn/dusk. Montana's speed limit is 80 mph, but Wyoming's is 75 mph. Winter conditions (Nov-Apr) require snow tires or chains. For family stops, plan for rest areas every 2 hours. The best rest zones include:

• Rest area near St. Regis, MT (mile marker 33) — clean, picnic tables.
• Wayside at Lookout Pass (ID/MT border) — panoramic views, easy access.
• Five Mile Rest Area (WY, US-287 south of I-80) — remote but safe.

Fatigue management is crucial on this long drive. Key strategies:

• Stop every 2 hours for 15 minutes, even if not tired.
• Caffeine available at most gas stations; avoid heavy meals at lunch.
• Power nap in a rest area or at a coffee shop like City Brew in Dillon.

Pet-friendly stops: Many rest areas have designated pet walks. In towns, look for parks: Missoula's McCormick Park, Butte's Stodden Park, and Lander's City Park. For overnight, budget motels like Super 8 in Butte and Lander accept pets. A hidden off-route spot: the ghost town of Garnet, MT, about 30 miles off I-90 near the town of Bearmouth — an abandoned mining camp frozen in time. Alternatively, detour 15 miles south of I-90 to visit the Oregon Trail ruts at Guernsey, WY, off I-25 near Glendo.

• Pet relief: use the 'BringFido' app to locate rest stops with pet areas.
• Hidden gem: Bannack State Park, MT (off I-15 near Dillon) — well-preserved ghost town.

The first section through Washington and Idaho is dominated by the Columbia River basalt flows and the Coeur d'Alene Mountains. As you cross into Montana, the landscape opens into the Bitterroot Valley, with the Sapphire Mountains to the east. The stretch from Missoula to Butte follows the Clark Fork River, then climbs into the Highland Mountains. After Butte, you descend into the Ruby Valley and cross the Red Rock River. Once in Wyoming, US-287 skirts the Wind River Range, with Shoshone National Forest and the Absaroka mountains to the west. Notable natural attractions include:

• Lake Coeur d'Alene (Idaho) — a glacial lake with emerald water.
• Lost Trail Pass (MT/ID border) — scenic but winding, elevation 7,014 ft.
• Red Rock Lakes National Wildlife Refuge (MT) — a remote wetland with trumpeter swans.
• Wind River Canyon (WY) — steep walls of ancient granite and limestone.
• Thermopolis Hot Springs (WY) — the world's largest mineral hot spring.

Local commerce along the route includes truck stops, small-town diners, and tribal enterprises. In Montana, look for huckleberry products — jams, syrups, and ice cream. The Shoshone and Arapaho tribes in Wyoming operate the Wind River Hotel and Casino near Riverton. Farmers' markets in Missoula (Saturday mornings) offer local crafts and produce.

• Must-try: Huckleberry pie at the Huckleberry Patch in Missoula.
• Worth a stop: Greybull, WY, for the Big Horn Basin's fossil quarries.
• Cultural note: Dubois is the gateway to the Wind River Indian Reservation, where you can learn about Eastern Shoshone and Northern Arapaho history at the Wind River Heritage Center.

Fuel stations are plentiful along I-90 until you turn south at Butte. After leaving the interstate, gas stations become sparse — plan to fill up in Butte, Dillon, and Lander. The best fuel economy is achieved between 60-65 mph on the open highways.

• Total distance: 600 miles (965 km) via fastest route.
• Driving time: 9-10 hours of pure driving, but budget 12-14 hours with stops.
• Key fuel stops: Missoula (exit 105), Butte (exit 127), Dillon (exit 23), Lander (WY).
• Road conditions: I-90 is excellent; US-287 south of I-80 can be narrow and winding.