Gillette to Choteau Road Trip: Best Stops, Drive Time, Tips

This route crosses the Powder River Basin, traverses the Bighorn Mountains via US-16, and then rolls across the high plains into Montana's Rocky Mountain Front. The drive covers 483 miles, typically taking 7.5 hours of pure wheel time, but plan for 9-10 hours with breaks.

The landscape shifts dramatically from Wyoming's coal country to Montana's glaciated peaks. You'll climb over 9,000 feet at Powder River Pass, the highest point on the route.

The geological highlight is the Bighorn Basin, where you'll see the 500-foot-thick Chugwater Formation's red cliffs. The Yellowstone River valley near Billings is prime birdwatching habitat.

UNESCO World Heritage Sites: Yellowstone National Park, though a detour, is the nearest UNESCO site. Closer to the route, Pompeys Pillar National Monument, a National Historic Landmark, a rock outcrop with William Clark's signature from 1806, offers a tangible connection to the Lewis and Clark expedition.

Local commerce: In Hardin, the Little Big Horn College showcases Crow culture; Ranchester's Tongue River Winery offers tastings of Wyoming-grown grapes.

Follow I-90 west from Gillette through Buffalo, then continue to Billings, MT. At Billings, take US-87/MT-3 north through Roundup and Lewistown, then US-89 northwest to Choteau. Alternatively, from Billings, you can take I-90 west to Livingston, then US-89 north through White Sulphur Springs, but heed snow closures in winter.

• Driving time: 7.5 hours without stops. Is it worth driving Gillette, WY to Choteau, MT? Absolutely, for the diversity of landscapes and uncrowded attractions.
• Best stops Gillette, WY to Choteau, MT: Bighorn Canyon NRA, Little Bighorn Battlefield, Pompeys Pillar, and the Beartooth Highway detour.
• Fuel costs: Gas prices drop slightly in Montana; budget $60-80 for a mid-size car. Use apps like GasBuddy for cheapest stations in Billings.
• Road quality: I-90 is well-maintained, but US-87/MT-3 north of Billings has narrow shoulders. Check MT 511 for road conditions.

Fatigue is a real risk on long, straight stretches, especially the high plains between Sheridan and Billings. Plan stops every 2 hours at rest areas or towns like Ranchester and Hardin.

• Family stops: The Little Bighorn Battlefield offers a Junior Ranger program; Pompeys Pillar has a boardwalk trail suitable for strollers.
• Pet-friendly: Most rest areas have leash-free zones, but keep dogs on a leash. In Billings, the Yellowstone River Trails allow dogs under voice control.
• Hidden gems: The Bighorn Canyon's Horseshoe Bend viewpoint is a short detour near Lovell; the Pryor Mountain Wild Horse Range is accessible via a rough road east of Lovell.
• Weather: Winters see heavy snow; summer afternoons bring thunderstorms with hail. Always carry water and blankets.

For maximizing your experience, learn how to find the best stops and hidden gems between cities.